Technical No compression on 2 cylinders after rebuild. 1.4L Multiair

[Sean0402]

Hey all, here’s an update the car. Here is a video I have taken with the current issue:

I’m trying to crank it over in hopes the oil will come up to the brick, I’ve had this sound for about 5-6 cranks today. Exact same sound each time. Tried bleeding with the Nipple in the oil cap, had oil come out the other day, now I have none coming out yet the oil on the dipstick is correct. Tried without plugs at first, same sound. I also made sure the alternator isn’t seized and I had a full battery charge.

Anyone got advice what else to test or if they can tell by the sound what I could direct my attention to possibly.

 

[bugsymike]

Hey all, here’s an update the car. Here is a video I have taken with the current issue:
View attachment 472006

I’m trying to crank it over in hopes the oil will come up to the brick, I’ve had this sound for about 5-6 cranks today. Exact same sound each time. Tried bleeding with the Nipple in the oil cap, had oil come out the other day, now I have none coming out yet the oil on the dipstick is correct. Tried without plugs at first, same sound. I also made sure the alternator isn’t seized and I had a full battery charge.

Anyone got advice what else to test or if they can tell by the sound what I could direct my attention to possibly.

To me that sounds as though it has a little compression, as though it is trying to build up oil pressure to work the valves.
I know little about these engine , but I believe the bleeding is mentioned online a lot so maybe there is a better technique to get the air out?
Are you getting any improvement on the compression gauge readings?

 

[Sean0402]

To me that sounds as though it has a little compression, as though it is trying to build up oil pressure to work the valves.
I know little about these engine , but I believe the bleeding is mentioned online a lot so maybe there is a better technique to get the air out?
Are you getting any improvement on the compression gauge readings?

It very strange. I'm still getting 0 compression at the moment. I've put the battery back on charge for tomorrow/saturday in hopes to give it another go. I'm just hoping that it is just a major air lock.

 

[bugsymike]

It very strange. I'm still getting 0 compression at the moment. I've put the battery back on charge for tomorrow/saturday in hopes to give it another go. I'm just hoping that it is just a major air lock.

Any way of priming the oil by using a vacuum pump to suck the oil out through the bleeder?
As I say, I have never worked on one, but is it possible to easily remove the hydraulic part and physically prime it before refitting, also I assume no way a gasket or seal is faulty, preventing oil from getting to that part to activate it.
If when it is off does that mean that all valves are shut or open as if shut you could do acompreesion test to confirm the issue is only down to the "multair" part?
Have you watched this? At least if it doesn't help, it may be useful to not flood the engine with fuel.
Here is another, you may have already seen these, but if not may help.

 

[bugsymike]

This may work?

 

[bugsymike]

My original search was "bleeding multiair"

Or this on a clean site but add the address correctly https://www.youtube. com/watch?v=41rYrKnOFK8