swapped cylinder head

[phtann3]

I broke my timing belt on my 1990 talon tsi AWD, old one had 60,000 miles on it. was gonna change it but didn't get the chance. Well here's my problem. Found a head on a 1991 or 1992 eclipse non turbo. both are 2.0 mine has turbo. I had the head checked over valves were good head needed surfaced new valve seals. installed on my engine, now I have no compression, after timing belt instal with old head i had compression in 3 of four cylinders. Valves seem tight when cams are torqued down. i used the turbo cams with rockers. Is my mechanical timing off? I don't know what to do, this is my first DSM car and I love it. HELP PLEASE!

 

[Dhan]

What are your numbers for each cylinder after doing a compression test?

Do a leak down test while you're at it.

If your timing was off with the new T-belt, there is a chance you bent a valve which would make for less than normal compression.

Also, did you check the cylinder wall for scoring or gouging after you took the original head off?

 

[phtann3]

Before I pulled the head i had 135 psi in 1 thru 3 and nothing in 4. I hag the new? head checked over and new seals put in. havent done a compression test with new head yet, but I can turn the engine over with hand wrench with hardly any resistence. I used the cams from the turbo engine. I'll get numbers for compression next to be sure.

 

[NOSLO2PT0]

Either your timing is way off, or the valves in the new head are bent. Take a picture of the cam gears and timing marks with cyl #1 at TDC.