Author Topic: Anyone have torque specs for the front of the motor? (Read 8117 times)

sheepdog · « **on:** July 17, 2006, 12:40:06 PM »

I need torque specs for the front of the motor from the timing chain case and everything in front of it.

Hoping to get my motor back together this week.

Thanks

Febi Guibo · « **Reply #1 on:** July 17, 2006, 04:53:45 PM »

timing cover:

m6 bolts: 6-7 lbs
m8 bolts: 15-17 lbs

if you need anything else, let me know...

M42boy · « **Reply #2 on:** July 17, 2006, 05:03:12 PM »

Be sure to use a liberal dose of silicone sealant along with the new gaskets. I did mine and it's still leaking a little.

Any other advise we should give him?

Febi Guibo · « **Reply #3 on:** July 17, 2006, 05:28:23 PM »

unrelated question... sheepdog, is your timing chain rail plastic or metal?

nickmpower · « **Reply #4 on:** July 17, 2006, 07:35:22 PM »

Quote from: Febi Guibo

timing cover:

m6 bolts: 6-7 lbs
m8 bolts: 15-17 lbs

if you need anything else, let me know...

where are you getting these? do you have a big list or something because i might be rebuilding a motor

sheepdog · « **Reply #5 on:** July 17, 2006, 08:47:32 PM »

Quote from: Febi Guibo

unrelated question... sheepdog, is your timing chain rail plastic or metal?

All rails in the e30 and e36 motor were plastic.

What about the crank bolt, the big one we removed with the huge bars at Metric Mechanic?
Also the rails and cam sprocket bolts, can I assume they are the same?

Thanks

Febi Guibo · « **Reply #6 on:** July 17, 2006, 09:27:03 PM »

ahhh doug, swinging around a 6-foot crankshaft wrench ....those were some good times....

camshaft sprocket
step 1: 44.2 inch lbs
step 2: 16.2 ft lbs

crankshaft pulley bolt
243 ft lbs

flywheel bolts
88.5 lbs

oil pump

m8 bolts: 16 ft lbs
m6 bolts (cover) 88.5 inch lbs
m10 bolts 25 ft lbs

fan clutch: 29.5 ft lbs
(going lefty!)

M42boy · « **Reply #7 on:** July 17, 2006, 11:53:32 PM »

Quote from: sheepdog

All rails in the e30 and e36 motor were plastic.

Funny, my right side guide rail was metal. Anyone else??

sheepdog · « **Reply #8 on:** July 18, 2006, 12:39:51 AM »

Quote from: M42boy

Funny, my right side guide rail was metal. Anyone else??

That one was metal backed I think.

sheepdog · « **Reply #9 on:** July 18, 2006, 12:42:39 AM »

Quote from: Febi Guibo

ahhh doug, swinging around a 6-foot crankshaft wrench ....those were some good times....

Ha Ha
I will have to get pics of my homemade wrenches for that and the fan bolt.

They are made from peices of a bed frame! :p

Do not laugh too hard, they worked. :cool:

Euro Nation · « **Reply #10 on:** July 18, 2006, 03:43:50 AM »

Drivers side guide is metal. New ones are plastic. New crankshaft gears have rubber rings around them where the chain touches as well. Did the old ones have this?

Don't forget to leave the upper timing cover bolts loose, tighten down the valve cover, then tighten the upper cover bolts. This pre-loads the profile gasket. I actually stuck a piece of 1/8" welding rod under the valve cover to help out too.

And fyi... my well worn stock clutch slips at 210ft/lbs. So sayeth the massive Mac torque wrench.

sheepdog · « **Reply #11 on:** July 18, 2006, 12:16:19 PM »

Quote from: Euro Nation

Drivers side guide is metal. New ones are plastic. New crankshaft gears have rubber rings around them where the chain touches as well. Did the old ones have this?

Don't forget to leave the upper timing cover bolts loose, tighten down the valve cover, then tighten the upper cover bolts. This pre-loads the profile gasket. I actually stuck a piece of 1/8" welding rod under the valve cover to help out too.

iI will have to double check but I am sure both motors were plastic with metal backing, but both crank gears were all metal. By the way, crank sprockets are about $50(!), which unfortunately is cheap compared to the idler sprocket which costs around $120.

Euro Nation · « **Reply #12 on:** July 19, 2006, 02:52:29 AM »

Yeah... that's what I mean. Metal bracket, plastic guide surface. The new ones are all plastic with the adjustable upper mounting hole.

My cost on the crank gear was in the mid-low $40s. I think list is like $55. I really needed it too. Damn near cut my hand open on the teeth removing it. Car purrs perfectly now though. No more rattlyness.