need some help please

302crew · 09-22-2002, 02:21 AM

well i just got my new combo together 306 bottom end edelbrock 6037 heads custom cam air gap intake demon 650 carb morroso oil pan heres the thing i take it out and beat the **** out of it and there is oil all over the underneath of the car and its down the back of the oil pan like it looks like its comming from the rear main seal anybody had this problem the motor is freshly rebuilt i was thinking maybee im building to much pressure in the crank case and thats the best spot for it to get out but it seems like alot of oil i have motorport valve covers with a breather on each one so i figured that probably vents it pretty good and if its the rear main seal whats the fastest way to change it in your opinions pull hte whole motor and trans or lay on my back and pull out the heavy *** tremec. thanks in advance

bigblockcoupe · 09-22-2002, 03:53 PM

clean it up and start it and let it run while your underneath if it's leaking that bad you shouldn't have any trouble finding where it's coming from if it is the rear main seal pulling the trans is the quickest way to get to it.

HotRoddin · 09-22-2002, 04:12 PM

Oh i feel for ya man ! But before you rebuild the rebuilt motor ... carefully check those valve covers !! .. lots of times the oil will trickle out of the back corner and down the side of the block and end up looking just like its coming out of the main seal (been there done that!) ... also the rear gasket on the intake will do the same thing.

I'd do just what BBCoupe said and clean it up really really good then start it and watch it closely from all angles

If your you're building enough pressure to blow a main seal with two breathers then you have a serious ring seal problem !

302crew · 09-30-2002, 02:02 AM

well i changed the rear main seal today took the car out drove it around not beating on it then when i was on my way home i beat on it a little and the damm thing was leaking when i looked under it what could this be from i put rtv all around the seal im really clueless right now and could use some help

09-22-2002, 02:21 AM	#1
302crew Registered Member Join Date: May 1999 Location: sloatsburg Posts: 261	need some help please well i just got my new combo together 306 bottom end edelbrock 6037 heads custom cam air gap intake demon 650 carb morroso oil pan heres the thing i take it out and beat the ** out of it and there is oil all over the underneath of the car and its down the back of the oil pan like it looks like its comming from the rear main seal anybody had this problem the motor is freshly rebuilt i was thinking maybee im building to much pressure in the crank case and thats the best spot for it to get out but it seems like alot of oil i have motorport valve covers with a breather on each one so i figured that probably vents it pretty good and if its the rear main seal whats the fastest way to change it in your opinions pull hte whole motor and trans or lay on my back and pull out the heavy * tremec. thanks in advance __________________ 306 edelbrock 6037 heads full mac exuast 1.7 rr 373 rear hd clutch tremec mighty demon 650 carb msd ignition rpm air gap intake custom cam still trying to get it to run right

09-22-2002, 03:53 PM	#2
bigblockcoupe Registered Member Join Date: Aug 2002 Location: broken arrow Posts: 212	clean it up and start it and let it run while your underneath if it's leaking that bad you shouldn't have any trouble finding where it's coming from if it is the rear main seal pulling the trans is the quickest way to get to it. __________________ Rice Haters Club member #68 '93 Cobra 10.20@135 '89 Gt Coupe 12.20@115

09-30-2002, 02:02 AM	#4
302crew Registered Member Join Date: May 1999 Location: sloatsburg Posts: 261	well i changed the rear main seal today took the car out drove it around not beating on it then when i was on my way home i beat on it a little and the damm thing was leaking when i looked under it what could this be from i put rtv all around the seal im really clueless right now and could use some help __________________ 306 edelbrock 6037 heads full mac exuast 1.7 rr 373 rear hd clutch tremec mighty demon 650 carb msd ignition rpm air gap intake custom cam still trying to get it to run right

09-22-2002, 04:12 PM	#3
HotRoddin cranky old man Join Date: Sep 2001 Location: Longview Texas Posts: 683	Oh i feel for ya man ! But before you rebuild the rebuilt motor ... carefully check those valve covers !! .. lots of times the oil will trickle out of the back corner and down the side of the block and end up looking just like its coming out of the main seal (been there done that!) ... also the rear gasket on the intake will do the same thing. I'd do just what BBCoupe said and clean it up really really good then start it and watch it closely from all angles If your you're building enough pressure to blow a main seal with two breathers then you have a serious ring seal problem !