N43 inlet manifold vacuum pipe location

N43 inlet manifold vacuum pipe location

Author
Discussion

Stychlee

Original Poster:

17 posts

22 months

Monday 6th February 2023
quotequote all
Hi I recently asked for help with the flywheel locking pin hole location so I could do the head gasket on my son's 318 n43. Thanks again to I am the reverend for the couple of times you helped me. I have it almost all back together but noticed a small vacuum pipe coming from the inlet manifold and it looks like it goes somewhere at the back of the head near the component at the end of the inlet camshaft (guessing it's a vacuum pump) if anyone can help me with the exact place this pushes on I will be grateful.

Stychlee

Original Poster:

17 posts

22 months

Tuesday 7th February 2023
quotequote all
For some reason I am not allowed to post on here until I have been a member for a year even though I have been posting from the start
I have started the engine (n43 318 2008) for the first time today after I changed the head gasket after my son broke a plug and tried starting it not realizing a bit hard fallen inside the cylinder. Was lucky, no bent valves or other damage.. other than the vacuum pipe that is still not connected at one end, everything else seems correct but it started first time and idles perfect but when I rev it, it sounds like it's being starved of fuel and when it returns to idle it often stalls.also the brake pedal is rock sol

Stychlee

Original Poster:

17 posts

22 months

Tuesday 7th February 2023
quotequote all
Pressed send by mistake on last message..so the brake pedal is rock solid and I wondered if it's connected to the vacuum pipe going to the servo...I checked both ends of the one that goes from the inlet to the driver's side far corner just in front of the white box the wiring loom goes into And it looks ok.
The only nipple sticking out that looks like it should have a thin vacuum pipe on is on the intake where there is a sensor (maf possibly) although the vacuum pipe that isn't connected doesn't look long enough to go from underneath the inlet manifold to the intake pipe but that could be because I routed it the wrong way round. The hesitant revving is intermittent and sometimes revs perfect.. coil packs and plugs are new and the timing was done with the correct tool... don't know if it's connected but a red warning light came up with a picture of an engine.. please help as this job really took it out of this retired mechanic.