Alright I wish I didn't have to make this thread but I am at a loss. Here is the story:
My 80 has 170k miles and I just started to notice a head gasket leak. Some oil in the coolant, some coolant in the oil, and a rough idle for about 15 seconds on cold start. So I ordered the kit from Wit's End and started tearing it down. Sure enough, cylinder #6 had a crack in the firing ring part of the gasket, direct path to one of the water jackets.
Anyway, I cleaned everything the best I could, had the head checked for flatness, checked the valves for leaks, and put everything back together. I made sure the cams were in time with everything, all marks at TDC. I just finished putting everything together last night. I turned the engine over by hand to verify the timing was correct and that there was no interference before I buttoned it all up. I cranked it over and it sounded like there was zero compression :/
I did a compression test on cylinder #1 and it's bringing up about 63psi which is super depressing. So at this point I feel like I've made things worse. I double checked the cam timing with the crank pulley and it seems to be in time. I can only assume that the head gasket did not seal properly. I torqued the head bolts using the method outline in the factory manual.
So what do you all think? Did the head gasket just not seal properly on all cylinders, or is the timing off somewhere?
I feel like it would be a timing issue if all cylinders have low compression but the marks line up so I'm not sure.
Thanks in advance.
My 80 has 170k miles and I just started to notice a head gasket leak. Some oil in the coolant, some coolant in the oil, and a rough idle for about 15 seconds on cold start. So I ordered the kit from Wit's End and started tearing it down. Sure enough, cylinder #6 had a crack in the firing ring part of the gasket, direct path to one of the water jackets.
Anyway, I cleaned everything the best I could, had the head checked for flatness, checked the valves for leaks, and put everything back together. I made sure the cams were in time with everything, all marks at TDC. I just finished putting everything together last night. I turned the engine over by hand to verify the timing was correct and that there was no interference before I buttoned it all up. I cranked it over and it sounded like there was zero compression :/
I did a compression test on cylinder #1 and it's bringing up about 63psi which is super depressing. So at this point I feel like I've made things worse. I double checked the cam timing with the crank pulley and it seems to be in time. I can only assume that the head gasket did not seal properly. I torqued the head bolts using the method outline in the factory manual.
So what do you all think? Did the head gasket just not seal properly on all cylinders, or is the timing off somewhere?
I feel like it would be a timing issue if all cylinders have low compression but the marks line up so I'm not sure.
Thanks in advance.