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Posted By Discussion Topic: Early V8 Block -- page: 1 2     gmcbuffalo 04-25-2022 @ 3:28 PM reply profile send p.m. Member Posts: 83 Joined: Jul 2011 I have what I thought was a 1934 block with babbit bearings(ugh). After almost 2 years having it dipped, cleaned and rebabbited I tried to start it and it leaked oil out from cotter pin hole. I dropped the pan and replaced the cork gaskets. Turned it over again and the same oil leak. Removed the engine and flipped it over and found nothing missing or unusual. It doesn't have the standard seals that you see in the rebuild manuals. I have read that you can't overfill these engines or they leak. should I be looking for a newer block or can this block be converted to one that leak less Greg Meiling 1935 3 Window Coupe gmcbuffalo 04-25-2022 @ 3:35 PM reply profile send p.m. Member Posts: 83 Joined: Jul 2011 Here are picture of the rear main and seals. Greg Meiling 1935 3 Window Coupe pauls39coupe 04-25-2022 @ 6:32 PM reply profile send p.m. Member Posts: 247 Joined: Jul 2014 Are you sure this is engine oil and not transmission fluid? The input shaft seal on the transmission is often a source of an oil leak and it will come out of the same weep hole. If it is engine oil, there is a cover at the back of the block behind the flywheel, which covers the oil pump drive. If the plug on the oil galley is not flush, it can cause this cover to not seal and oil will run down behind the flywheel, and out the weep hole in the clutch cover. I would also check to be sure the oil pan rails are flat, and that you have the correct oil pan gaskets. Some oil will drip from the weep hole on nearly all flatheads. A few drops every hundred miles or so is not a great concern. However, a steady stream or large puddle should be taken care of. 40 Coupe 04-26-2022 @ 4:47 AM reply profile send p.m. Senior Posts: 1800 Joined: Oct 2009 The rear main cap is missing the oil return tube. For 33-34 the tube is long and can interfear with the oil pump used, are you using the later style of pump? note where your oil pan is impressing a mark on the rear cork seal. does the indention mark go all the way around the cork? Usually the mark is near the center of the corks width yours is just touching. If there is too much crankshaft end play you can wind up with a leak. Do check the things Paul has mentioned above. gmcbuffalo 04-28-2022 @ 11:01 AM reply profile send p.m. Member Posts: 83 Joined: Jul 2011 There was no tube for the main when I took the engine apart. Check the flywheel cover area mentioned and it is tight and no signs of oil dripping from it. Same for transmission area. The cork gasket should be a good enough seal and I see what you are saying about it not being centered. I did notice a small flaw in the cork. Replaced the cork and reinstalled, cranked it over and all is dry. Now to see if I can get it started. Another thing I notices is the oil dipstick wanted to go deeper than the pan. while trying to adjust the stick to fit tighter in the tube I noticed it had a standing that maybe this is not the right stick. Like 8B and one other letter. I may have over filled it. Either way I fill it to the middle of the safe zone. Greg Meiling 1935 3 Window Coupe TomO 04-28-2022 @ 2:19 PM reply profile send p.m. Senior Posts: 7385 Joined: Oct 2009 Put in 5 quarts and mark your dipstick. Tom gmcbuffalo 05-22-2022 @ 1:30 AM reply profile send p.m. Member Posts: 83 Joined: Jul 2011 Well I put it back in the car, what a struggle. I had the engine upside down when I put the pan back on to make sure the gasket didn’t slip. I tried to start it today and after 15 minutes of cranking I had a 6” puddle under the car again. Does anyone know of someone I could call to talk to about this.? I’m willing to pull the motor again but I really can’t see anything wrong or at least obvious. Not getting much help locally. I’ve had this car for 60+ years and the last time I drove it I was 17. I would like to drive it at least one more time. Greg Meiling 1935 3 Window Coupe 1931 Flamingo 05-22-2022 @ 4:53 AM reply profile send p.m. Member Posts: 396 Joined: Nov 2019 Did you obtain and install the rear main tube before re-installing the engine?? Paul in CT carcrazy 05-22-2022 @ 9:27 AM reply profile send p.m. Senior Posts: 1976 Joined: Oct 2009 You might want to contact our club's Flathead Engine Advisor, Joe Abbin for help in solving your problem. As listed in the latest edition of the V-8 Times, his contact info. is: Joe Abbin PO Box 53296 Albuquerque, NM 87153 roadrunnerengr@msn.com gmcbuffalo 05-22-2022 @ 10:56 AM reply profile send p.m. Member Posts: 83 Joined: Jul 2011 Paul No didn’t have one. Looking to get Ann original motor for the car I traded this engine for the ‘48 year model I had. Had the engine for 50 years and just two years ago start overhauling it. When I took it apart it didn’t have this tube, I could be wrong. I have two other babbit blocks like this one and neither one has this tube. What would it look like? Greg Meiling 1935 3 Window Coupe

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