Different CJ5 Problems

[WV77CJ5]

I recently did a complete restoration of my 1977 CJ5, went with the fiberglass body due to money blah.... Anyways, my master cylinder leaks a bit and I was wondering if the fiberglass body would have anything to do with it. I installed new brake lines and have now put two master cylinders on it. Also, everytime I shut the jeep off I get a backfire after it has been ran for around 15 min's or more, but as long as I don't go over like 30 mph then it doesn't do it, and if I stop and let it run for about 5 minutes before I shut it off then it doesn't do it either. Any help would be appreciated, oh yeah, the timing is dead on. Thanks

 

[odjeep]

Is the master cylinder leaking around the lid? If so, i hear the fix is just to put an extra gasket on the lid to make it extra thick down there. It should take a little umph to get it fixed down but it should fix it. I had the same problem with the '79 CJ7 that I had. It was leaking around the lid but I never got around to fixing it before i sold so im not sure if the fix works. About the backfiring, maybe the advance is sticking. Is it vaccume or mechanical advance? Hope this helps.

od

 

[WV77CJ5]

It looks as if it is leaking around the lid, but it is running down the inside of the firewall also. Not a steady stream but it leaves stains to where you can see it. Also, where could I get another gasket from? About the advance, I believe it is vaccume, but honestly I couldn't tell ya'. And if I put a timing gun on my engine the advance seems to be working fine? But I honestly don't know. Thanks though, i'll try to find a way to make a gasket or something.