Re: 1930 7th Series- 320 engine- low compression issue- help sought...

Posted by TxGoat On 2024/4/11 8:15:26

60 PSI may be close to normal for a 1930 engine. Check compression with the throttle open and with a good battery at full charge. Compression readings will be lower at higher elevations. I would run the engine until it has warmed up, then do the compression check. As for starting, it is normal for the engine to need choking on a cold start. If the engine runs well once started, you may have a problem with the choke adjustment, or the carburetor may be leaking fuel when sitting.