gas washed cylinders and ring sealing

[36coupe]

Over the years I have heard of switching to non detergent oil when the rings would not seat right away. The old Harley one was comet or bon-ami by the tablespoon in the carburetor while running to seat the rings. A bit drastic but the rings probably seat pretty quick that way.
I know next to nothing on breaking in a flathead ford (never had a new one) but I would be careful getting it too hot while breaking in, I’ve stuck a stainless steel valve in a guide trying to break in an engine in 90 degree heat (old HD)

[big job]

[QUOTE=Pilot31135;1589858]I agree with Crankster, Drive it like a rental. It’s a Flathead it can take it.

Lets bring this up a knoch. There is a lot said about break in's. But what about stationary engines? Generators water pumps air compressor? And we did a
few. In fact our water dept still has a 59A one floor down. We rebuilt that one back in the 1970's. Chained falled it down did alignment like a boat. Hit the
start and instantly goes up to about 2500 rpms all day all night. Then we did I think it was 300ci Ford in a wood chipper. So what do you do, break it in with
wooden matches? No, run it to the governor and work it. Bottom line is some
new born babys take a little longer to crawl than walk and run. Back in the day we serviced many V6 GMC magnoms. They would all blow out the first
quart of oil, don't know why same as filling a model T with coolant, they want to run just about the radiator tubes or you get a soaked windshield..
So drive it like ya stole it some rings take longer to seat.

[john in illinois]

Thanks guys. I have decided not to worry about it since it has good compression and runs good.
When the snow and salt is gone I will put start putting miles on it.

John

[Pilot31135]

One thing I thought about also is, if the engine was rebuilt, seals DID get put on the intake valve guides correct? Ask me how I know if you forgot.[emoji16]


Sent from my iPhone using Tapatalk

[Pilot31135]

Also if you have chrome-moly rings, they take longer to seat than steel.


Sent from my iPhone using Tapatalk