Dohc swap questions please help!

Heads, valves, pistons, rods, crankshaft, etc...

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waldo320
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Location: Akron, OHIO

Dohc swap questions please help!

Post by waldo320 »

So I blew a head gasket about a year ago and decied to do a dohc swap on my boosted ej22. So I get everything put back together and and find out I do not have compression on the driver side due to bent intake valves. I replace the valves and add sti valve springs and retainers to all 4 cyc. I also throw in a walboro 255lph, megan racing fpr, parrell fuel line mod, and a used set of 270cc red top injectors.
My car will not start! After about 1 min of turning over it floods and I take my plugs out and let dry out through new spark plugs in the car and the same thing happens again. I have noticed that on my fpr I do not hold pressure. When I crank the car it jumps to 40psi and as soon as I stop cranking the pressure drops back to 0psi. Could I have mixed up the two little lines when installing the pump? Or could I have a bad injector/seal.
When timing the car I line the cams up with the marks on the pulleys to the marks on the belt, and line the crank pully up with the mark under the cas right? I have checked my timing numerous time believe its dead on but just want to make sure. Also I checked compression and have 100 psi in all 4 cyc. Also when I did the head dohc swap I used sti valve springs and retainers do I have to check shim size? I saw a small gap between the valve and head with the sti spring set up what would this do to my car?
My car has been sitting for over a year and I would really like to get it running again and need your help. Thanks
One of the crazy's boosting a NA!
14.3 @ 93mph
douglas vincent
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Post by douglas vincent »

If you have buckets, and/or shim/buckets ALL the (16) valves have to be checked for proper clearance!

Yes you could have mixed up the in/out fuel lines.

Crank gear.... did you use the arrow or the slash mark? for timing?
Reddevil, Awaiting new heart, will it ever happen?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
Arctic Assassian
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Post by Arctic Assassian »

what wiring harness/ computer combo are you using?
Kickin' it old-school.
waldo320
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Joined: Wed Jan 05, 2005 1:41 am
Location: Akron, OHIO

Post by waldo320 »

Stock ecu and harness from a 94 Bc sohc motor. Slash mark for timing. Also I was very careful to make sure that I put the same shim under bucket lifters in the same valve they cam from. Does the sti spring and retainer change my clearence? Thanks
One of the crazy's boosting a NA!
14.3 @ 93mph
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