bad compression news

[mtlman8]

after replacing the head gasket, the car had trouble restarting. I noticed the coil was very hot and since I put a pertronix electric distributer in I figured i'd put in a high performance coil... so far so good. timing correct, oil pressure good... still hard to restart... compression test shows #1 155lbs #2 145lbs #3 75lbs # 4 85lbs...i think at this point I need to pull the motor out and start from scratch and rebuilt it...I would greatly appreciate ANY input from you guys... thanks

 

[tdskip]

Bummer. And we are sure it isn( the valves?

Your spirits ok?

 

[tdskip]

Oh, and make sure the high performance coil isn't going to fry the Pertronix - you might want to double check the resistance.

 

[TR3driver]

Up to you, of course. But pretty much everything having to do with compression can be serviced with the engine in the car (except maybe the camshaft). Kind of messy to replace the liners, but I have done it more than once. And chances are that it will get you back on the road quicker.

Did you check the valves while the head was off?

Does the compression on 3 & 4 come way up with a couple squirts of oil down the plug hole?

 

[Andrew Mace]

What led to your replacing the head gasket? Overheating or similar? Could it be that the gasket didn't "seat" properly, or the head is a tiny bit warped (was it resurfaced?) or a cylinder liner is causing problems, or....lots of possibilities.

 

[mtlman8]

thanx for all the info. I'll pull the head on monday, check the valves and go from there. i'll be back on tuesday with a report ... again THANK YOU!

 

[mtlman8]

pulled the head yesterday and had to the head shop by 7pm...intake valves in cyl. 3 and 4 leaked pretty bad.i'll have it back in and running saturday afternoon.with fingers tightly crossed.(going to check the cylinders just to make sure rings are ok.)thanx for all the info guys!

 

[tdskip]

Sounds like you are making progress - needing a valve job is a good problem.

 

[mtlman8]

pretty happy about needing a valve job:}

 

[mtlman8]

I got the head in friday, gas tank pulled, cleaned and painted saturday. Today was spent timing the ignition and adjusting the carbs... whalaa!!! niceley tuned motor that runs great!!!! thank all of you for your input. special thanks to bill close and bruce begley. sincerly, one happy man!

 

[tdskip]

Great news - thanks for the update.