First attemt at rebuild on engine....1951 flathead straight 6

[cole18cars]

I agree with this advice too. I'd button it back up and run it up to operating temp. Then pour small amounts of water in the carb while it is running at approx. 2000 rpm's to remove all that carbon buildup. Dropping and cleaning out the oil pan is a good idea too. Don't spend money yet. You might not need to.

I have heard of this procedure of putting water into the carb to clean the carbon buildup. My question is, I have dual one barrel carbs on a Offy intake. Question one, What is the down side to this practice, head gasket, valves etc. Second, which carb, or does it make a difference, to pour the water into? Third, is the water a trickle, so the engine doesn't die? Thanks

[burns5150]

I just had this conversation today with an ol friend. These guys might need to second this, but I was told that the water needs to be "misted" , sort of like an old Windex bottle, misty spray instead of poured or dumped in. ....But like I said, I have never tried this , but will remember this when needed...

Oh yea, just bought my Plymouth Service Manual off Ebay last night (per advice from you guys!)...Can t wait to see it and get some info on the jewel!!

[sp15cspecial]

Gday from downunder if the noise you heard was sounding like a tappet noise could be a gudgeon pin bushing i had this happen in a plymouth on no. 6 . Sounded quiet at idle but when reving the motor got louder . Hope this will help you dianose your problem.

[greg g]

Wow, now theres another word that goes into the bonnet/boot, hood/ trunk lid, wing vs fender, spanner, wrench terminology.

For you non UK based english speakers, gudgeon = wristpin. Gday back.