hey everyone, im new to the forum, but not the game. heres my situation, im a car fanatic and have taken on quite a bit with engine swaps, rebuilds, ground up projects and so on. well, my dads co-worker was driving his 96 accord lx SOHC with 206xxx on it. he was doing 60, and the timing belt broke. since then, ive done the timing on the car 4 times, all resulting in the same problem. the car starts and runs, but has a ticking (not very bad but definately new) and will not rev past 2k rpms. smoke leaks out of the valve covers and the compressions horrible.

compression scores:
P1: 80
P2:25
P3:60
P4:70

i have no idea what these numbers should be but im assuming over 100. but its nowhere near that.

before i start with removing the top end, any input from you accord fans out there? thanks

also, this is the interference engine were dealing with...

 

high side they should be 180 psi low side I think its 80-90 psi

...bent valves and or scared the cyl walls my best guess but you won’t know till you pop the head

 

do you think when the belt broke, a valve chipped, scoring the engine walls? ive never dealt with this kinda situation before.

 

possibly but I was thinking more of the cyl scaring the cyl walls since you have such low compression. Really won’t know like I said till you pop the head. With the amount of miles that are no the engine…rings can go bad from age to help lose compression along with the belt breaking valves can be bent few things that can go wrong.

 

When you adjusted valve lash, did you find any that were really loose? Those would have been bent so they don't close properly. If you didn't adjust the valve lash, that would explain the ticking.

 

in my opinion busted timing belt equals bent valves

 

I've heard people breaking timing belts & NOT having bent valves.

If the belt breaks clean off, the camshaft will stop quickly, especially if the engine is idling. The valve springs will make it stop with valves nearly closed. During the short time the camshaft is coasting to a stop, there's a chance you'll get away without any bent ones.

Problem is, belts don't usually break clean off. They tear off a few teeth, & keep spinning but no longer synchronized to the crankshaft. And you'd be mighty lucky for it to happen at idle. So yes, it's very likely they ARE bent.