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Author Topic: F-head being pressurized  (Read 132 times)

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Offline oldtime

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Re: F-head being pressurized
« Reply #15 on: September 06, 2019, 10:37:24 AM »
Yeah well... the real problem here seems likely to be cracked piston rings or bad cylinder bores.
The only sure way to know for sure is to initiate a full rebuild.
But first you should take a look and make sure that some valves are not stuck open.
These things certainly can run on 2 or more cylinders.

Offline GaryM

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Re: F-head being pressurized
« Reply #16 on: September 10, 2019, 09:15:24 PM »
Thank you for your help, gentlemen. I will plan a rebuild for the winter. Incidentally, the new PCV routing seems to work much better--I was able to seal the oil filler cap and the engine still runs. There is a lot less smoke than there used to be. I got back from a drive tonight after dark so I didn't check the oil level yet, will do that tomorrow as well as check the air cleaner for oil build up. Hopefully, the check will show less oil consumption and less oil accumulating in the air cleaner. I realize that any improvement will be limited by the condition of my engine but I would be happy to be moving in the right direction.
1957 CJ3B restored & on road since Sept./19
1942 Willys MB project under construction

Offline Rus Curtis

Re: F-head being pressurized
« Reply #17 on: September 10, 2019, 10:33:11 PM »
Progress! 
'54 CJ-3B "Green Gruntt"
Bantam T3-C