91 civic si b18 block swap w/ b16 head

[LanceVigil]

me and my father have had a 91 civic si swap with a b18 block and a b16 head it has been off the road for about 3 years, we replaced a timing belt and the car has never ran the same since the old timing belt gave out. The tachometer is reading that when the car is idling it's at 0 rpm and the car will bog and die sometimes. does anyone know what might be wrong?

 

[MistahJuice]

Did you make sure that the mechanical timing is correct. The first time I put a belt on my bswap I had the exhaust cam a tooth off and it had less low end torque then my old D series because of that. Could be a tooth off on one of your cams or you may have bent a valve installing the belt. I suggest double checking everything that could have to do with the belt, and timing and if that checks out you should compression test the engine.

 

[Szady]

If the old belt gave out, you probably bent the valves in the head. Pull the head off, and check the valves out.

 

[LanceVigil]

dang that would suck if i have a bent valve. the car still can run with a bent valve but just crappy?

 

[Szady]

Yes, if they arent bent badly, it will still run. It will just run like utter s**t. You'll have no power, and terrible MPG. Do a compression test. If you dont have even compression across 4 cylinders, you probably bent valves.