Thread: water in oil of 402 rat

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had piston rings put in,new bearings,heads were redone .new guides.stainless vavles,springs.etc...put motor back together,fired it up and now have water in the oil...let the oil drain out found water present..filled water back up and can watch water drain out the drain plug..please help .. thanks so much

First thought would be did you get the head gaskets on correctly. Next might be one of the new guides is not installed correctly. Pull the plugs and see if water is running out of a cylinder....

Big Block Guides are not the same O.D. on both ends and they do go thru the water jackets in the heads..

thanks dave i should stick to making the bodies looking shiney and straight i own a rerstore and hot rod shop

had heads done by a 30 year in business shop ???

Originally Posted by yenko ss

had piston rings put in,new bearings,heads were redone .new guides.stainless vavles,springs.etc...put motor back together,fired it up and now have water in the oil...let the oil drain out found water present..filled water back up and can watch water drain out the drain plug..please help .. thanks so much

I wonder if they "hit water" when they did the valve job??

Originally Posted by yenko ss

had heads done by a 30 year in business shop ???

Well, everybody is subject to making a mistake now and then.....

well did they put guilds in or liners . the EX side is wet so like said they go thru water .did they cut in the water with hard EX seats was the intake or heads over cut did the intake gasket slip down or did anything get check for cracks

thanks pat ...they puy in new guides and magnafluxed the heads have not pulled intake off yet gasket went on good??? cant wait for snowmobiling in hale mi. or the u.p is it snowing yet thanks-you much

Originally Posted by yenko ss

thanks pat ...they puy in new guides and magnafluxed the heads have not pulled intake off yet gasket went on good??? cant wait for snowmobiling in hale mi. or the u.p is it snowing yet thanks-you much

no snow here but the upper did get some i am not that far north it was 50 here i think hale is not to far i have been there they had a old junk yard in hale

hey guys thanks for the help..i used a pressure tester for the cooling system ..i had vavle cover off and could see water coming out d/s front water jacket into intake valley..any ideas on best way to seal intake ...bbc thanks again,,,"YOU DREAM IT WE'LL BUILD IT" USA #1 THESE COLORS DON'T RUN" USING FEL PRO # 1212 EDELBROCK ALUM. INTAKE THANKS

Originally Posted by yenko ss

hey guys thanks for the help..i used a pressure tester for the cooling system ..i had vavle cover off and could see water coming out d/s front water jacket into intake valley..any ideas on best way to seal intake ...bbc thanks again,,,"YOU DREAM IT WE'LL BUILD IT" USA #1 THESE COLORS DON'T RUN" USING FEL PRO # 1212 EDELBROCK ALUM. INTAKE THANKS

check the intake that it is not getting held up by bottoming out on the china walls if so this will need to be cut down on the bottom of the intake and check the intake for twist if it is get it cut. make sure the intake bolts are not to long and bottoming out before it draw downs the intake .if you have a lot of pits from rust you can use A B putty or J B weld fill pits up and sand flat then put a thin coat of rtv to help seal it when you get ready to put the in take down you may want to make sure that the water ports are not to big and past the gasket print seal this gets bigger in time and boats that get run in salt water they get very big .if the heads ever were used on a boat . this water port on over cut heads gets very thin on the bottom that may make it hard to seal the intake i had to weld the water ports back up so the gasket would seal