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Intake valves not closing
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Author:  zeke [ Sat Mar 18, 2017 5:53 am ]
Post subject:  Intake valves not closing

So im in the process of installing my dohc heads and when I turn the engine over by hand all my compression leaks out of the #4 cylinder when I have the camshaft installed pull it out the cam and it seals just fine. One of my hla buckets on that cylinder is squishy and the other is very solid feeling. The valve with the solid bucket holds the valve open further than the other. This thing has me stumped to as why the valve is being pushed open by the camshaft when its not sitting on the lobe. Does this sound like a symptom of bad buckets I've never messed with self adjusting lifters before.

Author:  wtdash [ Sun Mar 19, 2017 7:02 pm ]
Post subject:  Re: Intake valves not closing

I don't have a direct answer, but recommend 'bleeding' all the HLA's before installing.

Author:  zeke [ Sun Mar 19, 2017 11:27 pm ]
Post subject:  Re: Intake valves not closing

Yeah I ended up taking them all out and bleeding them checked it out all the valves were closed after then I put the head back on without the cams in and they were sealing then I put the cams back in and its leaking past the intake again on the number 1 and 3 cylinders. I really dont want to put the sohc heads back on I think im going to just put it all back together and hope that with the engine running at speed it will all just seal up. If that doesn't work I may just buy an ej20g and slap in there.

Author:  wtdash [ Mon Mar 20, 2017 4:27 am ]
Post subject:  Re: Intake valves not closing

Do you know the history of the heads 100%? As in there's no chance the cams are wrong, etc?

And it's been awhile since I messed w/the DOHC, but there's an Intake and Exhaust Cam, but there' not left (driver's) or right (passenger), correct?

Author:  zeke [ Mon Mar 20, 2017 6:53 am ]
Post subject:  Re: Intake valves not closing

The cams are stamped with a R and L and an I and E so im 100% that they are in the correct spots. I was reading someone else with my exact issue on a vanogan with an ej22e in it and someone told that guy not to worry about it because he was cranking it over by hand and thats its not totally uncommon for that to happen but there was no follow-up as to if he had a problem or not. I do plan on updating this with a definitive answer just incase someone else runs into this issue weather its fine or not. If I dont end up working tomorrow I am hoping to have the engine back in the car ready to go so I will update as soon as I find out. Keeping my fingers crossed.

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