M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => General Topics => Topic started by: ///m42 sport on September 07, 2014, 07:55:06 PM
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(http://i25.photobucket.com/albums/c57/m42sport/m42/IMG_6823_zps74623860.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/IMG_6823_zps74623860.jpg.html)
Just picked up this spare m42 and trying to decide what I want to do with it. the M42 in my car no possibly has a broken ring and is going through oil like crazy. My thoughts are to clean up the spare m42, and if the sprockets are in good shape, replace the seals, and swap into my car.
My other thought was to do a stock rebuild since this is going to be my daily. Only thing is I've never worked on engines before so I'm pretty hesitant to do anything major with the engine.
In the meantime, I'lll post up some pics of the cleanup progress. Also I figure there are not enough pics of m42s online haha
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If you can get a e36 m42 head.
They are better, 6 mm valve stems.
May as well port and as well. While your there.
Cheers
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I'd suggest a compression and leak-down test as well as checking crankshaft endplay. That will give you some information to help make your decision.
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spent some more time tonight taking the engine apart
(http://i25.photobucket.com/albums/c57/m42sport/m42/A0F8CC85-0D94-41D0-A792-977E2C66E0BC_zps7uqxt6w8.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/A0F8CC85-0D94-41D0-A792-977E2C66E0BC_zps7uqxt6w8.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/m42/7DB457B2-5646-47FC-9B8F-576982499FCE_zpsujmxahih.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/7DB457B2-5646-47FC-9B8F-576982499FCE_zpsujmxahih.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/m42/4271BC6E-2B80-46C0-B649-2B6DFCA99DDD_zpskeufy8i7.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/4271BC6E-2B80-46C0-B649-2B6DFCA99DDD_zpskeufy8i7.jpg.html)
Looks Good!
(http://i25.photobucket.com/albums/c57/m42sport/m42/368CDB9F-35DD-4DF7-9841-0B7C112241AC_zpsq5pjzmcy.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/368CDB9F-35DD-4DF7-9841-0B7C112241AC_zpsq5pjzmcy.jpg.html)
plugs are worn haha
(http://i25.photobucket.com/albums/c57/m42sport/m42/D73CA741-C73F-4917-97C2-578AE616F45D_zpsxrpnpppo.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/D73CA741-C73F-4917-97C2-578AE616F45D_zpsxrpnpppo.jpg.html)
Not sure what happened here with the injector tip. I searched everywhere thinking the tip flew off somewhere or inside the port but I didnt find it. I'm thinking the PO installed the injector without the tip since when I pulled the injector out, the rubber washer was still in the hole.
Havent done a compression test yet though.
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(http://i25.photobucket.com/albums/c57/m42sport/m42/IMG_6830_zps69e1a93e.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/IMG_6830_zps69e1a93e.jpg.html)
btw how do you get the pulley off the crankshaft? Does it just pull off?
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By attaching something or someone to the flywheel end of crankshaft and yelling a lot!
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Cam sprockets look great! :)
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removed the waterpump today. thought it was weird there was no paper gasket...once removed noticed the a pretty good chip on the rim surrounding the waterpump where the PO just tried to fill in with silicone gasket maker. (http://i25.photobucket.com/albums/c57/m42sport/m42/673B483F-84B4-49D7-9052-67ABC2B8A5CC_zpsgazv2gxo.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/673B483F-84B4-49D7-9052-67ABC2B8A5CC_zpsgazv2gxo.jpg.html)
Now the question is how can I unbolt the crankcase to replace the timing cover with the engine on the stand? there is no flywheel I can use to stop the crankcase. I only have hand tools btw
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You need a crank holder. You can borrow it if you want just pay for shipping there and back. I've also got a lower timing case cover from when I switched mine from the idler wheel to idler guide. PM me if you're interested.
(http://i1358.photobucket.com/albums/q767/mabeer/IMG_20140911_091618992_zpsksysk9xe.jpg) (http://s1358.photobucket.com/user/mabeer/media/IMG_20140911_091618992_zpsksysk9xe.jpg.html)
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I was also wondering if its possible to replace the profile gasket by removing just the upper timing cover?
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Yes it is possible, but its hard to compress the profile gasket. You would have to use a jack or something to jack up the timing cover to compress the gasket. Never tried it personally but other poeple have done it. Sounds tricky to me because of the angle m42 blocks sit at, cant jack straight up... Good luck, ....Skid
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ok cool... My engine is on a stand so maybe a little easier to do
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I know I PM'd this but I thought I'd post up for others that come after. Google E30 Factory Manual and you'll find links to download the BMW Factory Manual that will walk you through the lower timing case replacement. The M42 section is pretty good.
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Spent some time cleanging my engine up. I was all excited last Monday to get the crank holder tool. Waited a week to get it so I can finally get the lower timing case off. Turns out Pelican shipped me the wrong tool. >:( I called them right away and then waited for 5 days, no response on what to do from them so I called them Friday. Sent the tool back and another one should be on its way. Hoping the same mistake doesnt happen twice.
(http://i25.photobucket.com/albums/c57/m42sport/m42/506563B9-7D32-4EAC-BC04-796509FD5921_zps1xpgehah.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/506563B9-7D32-4EAC-BC04-796509FD5921_zps1xpgehah.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/m42/09F4D61F-CFA6-4DDC-9C96-EF2D9183720D_zpsz67uiqvp.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/09F4D61F-CFA6-4DDC-9C96-EF2D9183720D_zpsz67uiqvp.jpg.html)
after removing my thermostat, I got to see the profile gasket which looked like it was in decent shape. :) Guess I'll wont mess with it for now.
also what do you guys suggest is best way to clean then paint the engine block? Seems like the more I wire brush and scrub the more rust comes off.
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That bolt is on tight. I made my own crankshaft holder by drilling a couple of holes in a long piece of angle iron and using the ground under the car to hold it. On an engine stand I think it might flip the stand if it wasn't bolted to it. I had to use a 4 ft extension on a breaker bar to get mine off.
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(http://i25.photobucket.com/albums/c57/m42sport/m42/58A2AC00-EA73-4292-B98F-26F22B7CB679_zps7x9ytjgk.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/58A2AC00-EA73-4292-B98F-26F22B7CB679_zps7x9ytjgk.jpg.html)
well waited 2 1/2 weeks for the crank tool. Got setup to battle with the bolt and it was over before I knew it lol. Didnt even use a breaker bars
(http://i25.photobucket.com/albums/c57/m42sport/m42/18B49850-D0EE-4F77-9E55-4E3555965582_zpsjyytfkvf.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/18B49850-D0EE-4F77-9E55-4E3555965582_zpsjyytfkvf.jpg.html)
what ya'll think of the profile gasket sticking out here? is that normal?
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(http://i25.photobucket.com/albums/c57/m42sport/m42/F1B442EF-8EA2-412E-A84C-81B4FAEBE415_zpstq8dvllv.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/F1B442EF-8EA2-412E-A84C-81B4FAEBE415_zpstq8dvllv.jpg.html)
also coming back to this issue again. I thought it was a timing cover issue but now realize its a timing case issue :'(. think that huge gash is repairable with jb weld, then a gasket sealer to seal waterpump?
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I might try looking for another timing cover... you could probably have it repaired, tig weld the gash, file smooth, drill and remove the broken bolt.. Im not sure about the jb weld? It would really suck after all the work you are doing to put it back together and have the jb weld fail.. A used timing cover might be a better option and cheaper.. As for the profile gasket, I dont like the looks of it. If it were me I would replace it. It may have bulged out after you removed the cover?? Another hate to have a leak situation.... Skid
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thanks skidmark, I thought about it a little and decided to swap out the timing cover. Profile gasket didnt look too bad but that waterpump surround didnt look like it would hold.
(http://i25.photobucket.com/albums/c57/m42sport/m42/A01A86C1-B6D0-4C29-AAAB-5B1C50BC4AA4_zpsa8djufmp.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/A01A86C1-B6D0-4C29-AAAB-5B1C50BC4AA4_zpsa8djufmp.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/m42/6864376F-069C-4E3C-9FC6-F03EA4D31460_zpsctffnqxr.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/6864376F-069C-4E3C-9FC6-F03EA4D31460_zpsctffnqxr.jpg.html)
I'm glad I took off the timing case. Profile gasket looked in descent shape but could use a change
(http://i25.photobucket.com/albums/c57/m42sport/m42/7FC1E334-0400-4CCE-A973-9F697619E9C1_zpsnvadlgoa.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/7FC1E334-0400-4CCE-A973-9F697619E9C1_zpsnvadlgoa.jpg.html)
cleaned up the head surface. Not much pitting
(http://i25.photobucket.com/albums/c57/m42sport/m42/69F17F8F-404F-4D4D-BBDE-068144CE5B6C_zpsw1zvchc7.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/69F17F8F-404F-4D4D-BBDE-068144CE5B6C_zpsw1zvchc7.jpg.html)
cleaned the block
(http://i25.photobucket.com/albums/c57/m42sport/m42/561A34F4-7315-4A07-A284-8E2BD4192994_zpssporxj0i.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/561A34F4-7315-4A07-A284-8E2BD4192994_zpssporxj0i.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/m42/8C02B78F-E012-450F-AF6C-2CCA83E4277C_zpsyavofmhi.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/8C02B78F-E012-450F-AF6C-2CCA83E4277C_zpsyavofmhi.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/m42/061E00DB-3330-41C1-B5D6-1E5BA01E257C_zpstsjcngdv.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/061E00DB-3330-41C1-B5D6-1E5BA01E257C_zpstsjcngdv.jpg.html)
then looked like I screwed up the timing. I'm pretty sure the left cam moved a little after trying to take off the timing case. How do I make sure the cams are lined up with crank? :(
Also when I put the chain back in place, how do I know how many links should be between the gears?
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This was from another thread, hope it helps.
Timing is pretty simple. if you follow a couple of rules: 1) front cam lobes pointing up and slightly towards each other and flats at rear lined up so a ruler can be placed flat across them kind of like this(http://i1358.photobucket.com/albums/q767/mabeer/timingmarks-3_zps7dc41c7e.jpg) (http://s1358.photobucket.com/user/mabeer/media/timingmarks-3_zps7dc41c7e.jpg.html)
2) There is an arrow on the oil filter housing
(http://i1358.photobucket.com/albums/q767/mabeer/timingmarks_zps3cd38cb3.jpg) (http://s1358.photobucket.com/user/mabeer/media/timingmarks_zps3cd38cb3.jpg.html)
That needs to point to the tooth with this mark on the harmonic balancer (http://i1358.photobucket.com/albums/q767/mabeer/5acdfbc5-5efd-4d70-9cac-76d312945c9a_zpsdfce7d27.jpg) (http://s1358.photobucket.com/user/mabeer/media/5acdfbc5-5efd-4d70-9cac-76d312945c9a_zpsdfce7d27.jpg.html)
There should be 15 tiing chain pins between the timing gear marks.
If you do that you should be good to go.
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aright thanks!
attempted to put on the lower timing case tonight.
(http://i25.photobucket.com/albums/c57/m42sport/m42/467B1F9C-08B2-409A-81F4-CE2511627B46_zpsxkx4psuu.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/467B1F9C-08B2-409A-81F4-CE2511627B46_zpsxkx4psuu.jpg.html)
gasket'ed up
(http://i25.photobucket.com/albums/c57/m42sport/m42/55DA86E8-DDDB-4377-8159-43B8112DCCAB_zpsmyrm3b23.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/55DA86E8-DDDB-4377-8159-43B8112DCCAB_zpsmyrm3b23.jpg.html)
Used silicone rtv under the profile gasket and tried the feeler gauge method.
(http://i25.photobucket.com/albums/c57/m42sport/m42/00E13230-C53E-49F1-B670-C26A25C364F3_zps2vuourla.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/00E13230-C53E-49F1-B670-C26A25C364F3_zps2vuourla.jpg.html)
more feeler gauges
(http://i25.photobucket.com/albums/c57/m42sport/m42/D7D2E94D-912A-4E7B-88FE-988C1E60FCD7_zps4tksuclv.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/D7D2E94D-912A-4E7B-88FE-988C1E60FCD7_zps4tksuclv.jpg.html)
Got the bottom of the timing case mated up against the block and tried to use bolts to snug the top of the timing case against the block.
(http://i25.photobucket.com/albums/c57/m42sport/m42/63C389B0-28BA-4BB2-851A-3F2F54022F09_zpsmsjnit0r.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/63C389B0-28BA-4BB2-851A-3F2F54022F09_zpsmsjnit0r.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/m42/489B0EE8-255C-4298-A42B-FC28CE68D0B5_zpsvidezuwe.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/489B0EE8-255C-4298-A42B-FC28CE68D0B5_zpsvidezuwe.jpg.html)
Noticed that this might be a issue. Its hard to tell from this pic but the oil pump is still angled against the slot on the crankcase and about a millimeter off from sliding in. The profile gasket it pushing down slightly against the timing case. Havent found a good way to apply pressure up on the bottom of the case...I was thinking tommorrow ill wrap the engine with a racheted tietown. Hopefully that will give enough pressure to push up on the timing case and allow the oil pump to slide onto the crankcase...Anyone have other ideas?
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(http://i25.photobucket.com/albums/c57/m42sport/m42/BDFCE57D-7CBF-4836-8ACD-2D84534FD18A_zpsugjqgm9o.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/BDFCE57D-7CBF-4836-8ACD-2D84534FD18A_zpsugjqgm9o.jpg.html)
this is something I came up with and trying out tonight. Im thinking using the racheted rope will pull up enough on the gasket enough for me to clear that milliter gap at the oil pump/crankshaft slot. I'm also setting the profile gasket inplace already so I wont have to mess with wedging it into place. Wish me luck lol :D
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after 2 hours trying to get the timing case on, I'm almost there. Learned a few things
I thought initially I would try to line up the top of the case first then pull the bottom up with the block. That way I wouldnt have to mess with the profile gasket any and it would only be a matter of lining up the oil pump....
Found out it wasnt so simple.
(http://i25.photobucket.com/albums/c57/m42sport/m42/IMG_6848_zpsec0a299a.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/IMG_6848_zpsec0a299a.jpg.html)
wondered by the case wasnt budging and looked in the back and realized the crankcase wasnt clearing the hole on the timing case >:(
(http://i25.photobucket.com/albums/c57/m42sport/m42/D7D2E94D-912A-4E7B-88FE-988C1E60FCD7_zps4tksuclv.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/D7D2E94D-912A-4E7B-88FE-988C1E60FCD7_zps4tksuclv.jpg.html)
I guess its back to this method...using the feeler gauges to guide the profile gasket it. will see if I can slap it on tomm night.
(http://i25.photobucket.com/albums/c57/m42sport/m42/IMG_6836_zps152012a2.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/IMG_6836_zps152012a2.jpg.html)
I did find that you get a little bit more room to slide the timing case with the slots for the oil pump rotated up and down instead of horizontal.
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success tonight
(http://i25.photobucket.com/albums/c57/m42sport/m42/DF49A21E-BE3D-4A54-989A-822D75D32E0A_zpslz67jtru.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/DF49A21E-BE3D-4A54-989A-822D75D32E0A_zpslz67jtru.jpg.html)
got more tiedowns in place and the feeler gauges set. block of wood was to more evenly distribute the pressure exerted by the tiedowns or risk cracking the weak aluminum case. It worked really well!
(http://i25.photobucket.com/albums/c57/m42sport/m42/11ca0b62-2902-4d12-8346-44952f87e53c_zpscb1c055d.jpg) (http://s25.photobucket.com/user/m42sport/media/m42/11ca0b62-2902-4d12-8346-44952f87e53c_zpscb1c055d.jpg.html)
Sorry bad pic. Its just showing me using a flathead to push the gasket into place. The feeler gauges helped alot but was not a perfect soluntion. I still had to push the gasket in place in some sections.
My only issue at this point is the mating surface for the oilpan is a hairline off on one side. I couldnt get the timing case to sit flat against the block. I tried to push up on the timing case but it wouldnt budge.
Think it would be ok for the timing case to be sticking about half a millimeter lower than the block on one side?
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(http://i25.photobucket.com/albums/c57/m42sport/IMG_6849_zpsffe0c369.jpg) (http://s25.photobucket.com/user/m42sport/media/IMG_6849_zpsffe0c369.jpg.html)
couldnt get this any more level with the block :(
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just noticed diff in the timing guides tonight
(http://i25.photobucket.com/albums/c57/m42sport/IMG_6853_zpsf04a906d.jpg) (http://s25.photobucket.com/user/m42sport/media/IMG_6853_zpsf04a906d.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/IMG_6852_zps720d0565.jpg) (http://s25.photobucket.com/user/m42sport/media/IMG_6852_zps720d0565.jpg.html)
(http://i25.photobucket.com/albums/c57/m42sport/IMG_6851_zps95e59275.jpg) (http://s25.photobucket.com/user/m42sport/media/IMG_6851_zps95e59275.jpg.html)
notice the mounting point to the left is taller than original
(http://i25.photobucket.com/albums/c57/m42sport/IMG_6856_zps0955d497.jpg) (http://s25.photobucket.com/user/m42sport/media/IMG_6856_zps0955d497.jpg.html)
new guide is beefier and one of the attachment points is diff. Wonder if I can run it without issues?
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The newer one is an upgraded design. Be sure to to use the correct (longer) bolt that pairs with the newer rail.