changing coolant hoses writeup

[EN318isPDX]

Nice write up but this is all incredibly pointless and expensive

It only cost me ~50 dollars for every single hose under there, and it looks very clean TO EACH HIS OWN :confused:

[AcSchnitzer318is]

^I prefer it deleted as well, but lots of ppl keep them original.  Which is cool too.  I just didn't like the way the original stuff cracked and corroded out.  The less points of failure the better in my book.

[///m42 sport]

Well documented write up.

Damn man you are very detailed! I always forget to put the surgeon gloves on when i work on my car.. i have a huge box of them that i always forget about

Thanks.  I figure this will help someone else so why not document as I go along.

[///m42 sport]

Well documented write up.

Damn man you are very detailed! I always forget to put the surgeon gloves on when i work on my car.. i have a huge box of them that i always forget about

Thanks.  I figure this will help someone else so why not document as I go along.

Maybe this is a good time to clean out your throttle body.

good luck
Justin

Yeah I sprayed it down with brake cleaner before reassembly.

[///m42 sport]

wheres the bleeder screw located?

[AcSchnitzer318is]

On the driver's side of the radiator... don't put too much torque on it, they break really easily.

[///m42 sport]

On the driver's side of the radiator... don't put too much torque on it, they break really easily.

Ok thanks.

I like to ring the guys neck who allowed this hose into production.  As you can see the hose opening is clearly too small to fit on the radiator.  I spent about 30min trying to muscle it in.  Lets see how long this will hold!

[///m42 sport]

hey I should've put this the writeup section.

[PaulC]

Nice write-up and pics. I don't necessarily think this vacuum / cooling system is not good. I just like not working on it, and not looking at it. Make sure to tighten your hoses.

[strad]

Haha that's funny someone else noticed the hose connector problem!  I ended up cutting the old hose (which was still in good shape, at least on that end), and splicing old and new together right under the airbox.  That solved my connector problem, but it pissed me off that I had to do it.  

I too like having things oem.  That's how I did mine when I did it a year ago.  Nice write-up!  Brings back memories.

[JP 91iS]

I just didn't like the way the original stuff cracked and corroded out.  The less points of failure the better in my book.

I was thinking that maybe the vacuum hoses crack so often is that they are being heated beyond what they would normally be by the hot coolant running through the throttle heater hoses.  The vacuum lines run right next to them in those 4-way hose junctions.  I'm using oem replacement vacuum hoses, but deleting the TB heater mess, so I guess I'll find out depending on how soon they crack again.

[1991 E30 M42]

You have two hoses reversed, the little stubby hose that connects to the nipple on the bottom of the throttle body needs to go to the crank case vent, not the icv. There is a reason it is angled backwards, as air moves by the hole it will create a vacuum thus relieving the pressure in the crank case

[3bvert]

nice write up, good pics
i too dleleted all that stuff, but good write up all the same. this is also a good time to setrvice the icv valve. there is a write up on it someplace, but its simple, basically just shooting carb cleaner through it a bucnh to free up the slides, as they will get full of junk from vacum, and stick, causing idle issues

and yes hat stinking hose to the radiator is a nightmare, even got mine from bmw as I did not think the aftermarket one was good, ends up the bmw one was just as bad/tight
so I heated mine with a hair dryer, then put some oil on the nipple of the raidator, adn slid it on, not easy, but easier then when it ws cold

another britlle piece is the throttle cable adjusting nut
and like mentioned above the big black plastic pipe

also a good time to replace the injector seals, or the injectors themsleves.but thtas a whole other issue and expense
but you saved money by doing the delete so you can afford the injector seals (http://www.m42club.com/forums/showthread.php?t=2742
which of course can lead to different better injectors
if your not aware of that one, its a different write up, but better fuel atomazation, better gas milage, and better throttle responce and better idle, my 4 upgrade bosh injectors with seals cost me $80 ( for all 4)


I look at it like this.....the car is 20+ years old, if this piece of rubber or seal is going, the others are not far behind, if im right there with the parts in my hand , Ill replace them,
nothing sucks more, then redoing something a month later

[relucta]

do you know a good site to order all those parts?

[cncmastr]

do you know a good site to order all those parts?

Pelicanparts.com