Rebuilt E30, few issues

[Kershaw]

starter fluid wont do everything. a smoke test is what is really needed.

i bet you forgot to screw down 1 hose properly.

[Hick]

Its not registered at the moment, ill keep looking for a leak before i haul it off some where for a service that costs moneys.

[Hick]

got a nasty vacuum leak somewhere at the back of the intake

bought a PVC 2" end cap (O.D. was around 2 3/4") Drilled a hole in the end of it and put a schroeder valve. Hit it with the air tank and you can hear a very loud hiss from around intake port 5 or 6.

[jlevie]

The possibilities for that area are intake or valve cover gaskets, injector seals, or the breather hose.

[Hick]

i had a bottle of soapy water. sprayed all the places you listed and found nothing. Its such a PITA to look back in that area that im going to just remove the intake mani and reseal everthing.

[Aleksey]

Is your engine shaking the whole car or just by it self?

[CorvallisBMW]

You can also try spraying starter fluid around the #5 and #6 cylinders, hoses, etc with the engine running. When the idle surges up, you'll know you've hit a leak.

[Hick]

^^ Tried the starter fluid with no results.

I made a fitting to plug in place of the AFM and put compressed air into the intake manifold. I heard a leak back near 5 & 6 right away with very little pressure in the manifold.

So i took the intake off, see no reasons for a leak. EVERYTHING looks fine, hoses, injector o-rings, gaskets...

Im going to reuse the gaskets, they were installed dry and have less then 50 miles on the motor, but this time with some RTV. Getting some new injector o-rings. I did not replace then during the rebuild.

Mating surfaces are clean, only other problem may be the 'tube of death' i dont know if the o-ring i have are correct, spring wore out.. etc.

[Aleksey]

Answer my question

[Hick]

Is your engine shaking the whole car or just by it self?

Answer my question

I dont follow. But to answer the question(s) with a blanket responce... the motor is silky smooth and does not shake whatsoever

[Hick]

Okay, replaced all the injector seals, reinstalled the intake manifold with a little RTV, and put a spacer on the tube of death, effectively making the spring stiffer.

no vacuum leaks, it seems to run a little better.... brakes still suck

[Simon S]

brakes still suck

Do some hard stops from 60 to engage the ABS, then rebleed.

has the ABS been 'burped' in this manner?

[RobertK]

99.5% the 1222 code is always vacuum leak.

Is there anything you didn't hook back up like the charcoal canister line that hooks up under the throttle body? This always gets overlooked and many times the weird rubber hose has cracks all in it.

[lennon]

smoke test! if you were local i'd find that vacuum leak.

[Hick]

I have solved the vacuum leaks as far as i know. Im working on the brake issue but i had a few things to do before then.

After doing a string alignment im going to head out for some hard stopping. It does stop, and the ABS works, but the pedal is a little to soft for my taste. After 'burping' the system ill try to bleed it again. I did replace a lot of lines so it may have some air.