Rear main seal leainking

demononwheels · February 12th, 2007, 09:51 PM

My rear main seal has been leaking for a while. The engine has around 6000 miles on it. So while the clutch was being replaced, the rear main seal was also replaced. That got done today. My car was delivered to my house today while I was at work. When I drove up to my house, I notice a spot of oil underneth the car. After being replace it still leaks. I think I have to much crankcase pressure. What can I do ? I do have one breather on the passenger side valve cover. Every once and a while the dip stick will be pushed up from the pressure. Oh yea, I running around 14 psi of boost.
But not today. Not with the new clutch. Its a 1993 ford Mustang. 508 rwhp.
Any suggestions? I'm thinking I have to live with the oil leak.

terribleonexx88 · February 12th, 2007, 09:57 PM

do u have a crankcase breather

Stangzilla · February 12th, 2007, 10:23 PM

Do you have breathers in both valve covers?

demononwheels · February 12th, 2007, 10:44 PM

Crankcase breather?
Only the passenger side valve cover has a breather.

Stangzilla · February 12th, 2007, 10:47 PM

Put one in the drivers side too... And make sure its baffled also otherwise oil will shoot out.

quick50stng · February 21st, 2007, 11:48 AM

I would run two hoses off the valve covers from the breather holes into an oil accumulator(catch can) with a breather.

GTXRacing · February 21st, 2007, 12:45 PM

Then he would be rebuilding that pressure again... Stangzilla's right. yeah i got a BS autozone breather and i have oil spalltering all over the place. I'm about to replace my cam again and new rockers and lifters so maybe I can restore my crankcase pressure now the car will be able to breather a little wider and better.

Crankcase = Where you put your oil in.

demononwheels · February 21st, 2007, 02:02 PM

I'll have to remove the upper gt-40 intake to get the the drivers side valve cover and drill a hole in it for another breather.
Thanks for the help.

GTXRacing · February 21st, 2007, 02:06 PM

Originally Posted by demononwheels

I'll have to remove the upper gt-40 intake to get the the drivers side valve cover and drill a hole in it for another breather.
Thanks for the help.

DON'T DO THAT!!!!!!!!!!!!!!!! Buy another breather for your car and take off the filler cap. Add your groomet and place your breather in it. Don't drill any holes into the valve covers it's usless. They make stuff for that!

demononwheels · February 21st, 2007, 02:31 PM

Originally Posted by GTXRacing

Originally Posted by demononwheels

I'll have to remove the upper gt-40 intake to get the the drivers side valve cover and drill a hole in it for another breather.
Thanks for the help.

DON'T DO THAT!!!!!!!!!!!!!!!! Buy another breather for your car and take off the filler cap. Add your groomet and place your breather in it. Don't drill any holes into the valve covers it's usless. They make stuff for that!

Maybe I'm misunderstood what you said but nothing on this motor is factory. I have Comps Cams Composite valve cover on my motor and where the filler tube is located on the factory valve covers, is where my breather is on my new comps covers. That is the only breather/oil filler spot I have. Here is a link of a pic of the motor before it was put in http://amarilloracers.com/phpBB2/alb...php?pic_id=575.
If I'm still misunderstanding, you might have to draw me a picture...LOL.
I'm new at this so bare twith me. Its only my second hardcore year.
Here is a link of the dyno of my car http://amarilloracers.vidiac.com/mos...b226b8b0b8.htm

Thanks again

GTXRacing · February 21st, 2007, 02:41 PM

Now that's a nice engine... I wish I had $10,000 to spare...

No it's ok man, I actually misunderstood what you said to tell the truth, you did ay "Drivers Side... Yeah looks like you have no choice but to drill until the damn thing. Hell it's new parts... I hate to see a brand baby spaking new engine get cut into so early but no choice.

But hell, you still might have to do that, get some other type of valve covers that you can see where the fitting is, and maybe, just maybe you might not have to do that. Then you can sell your valve covers from that engine to me LOL kiddin, but you could sell em to make something back. since you wouldn't need em.

demononwheels · February 21st, 2007, 03:24 PM

You have me on a rolllll. Here are some more pics
http://amarilloracers.com/phpBB2/alb...php?pic_id=584
http://amarilloracers.com/phpBB2/alb...php?pic_id=784
http://amarilloracers.com/phpBB2/alb...php?pic_id=580
http://amarilloracers.com/phpBB2/alb...php?pic_id=579
http://amarilloracers.com/phpBB2/alb...php?pic_id=581
http://amarilloracers.com/phpBB2/alb...php?pic_id=785

Stangzilla · February 21st, 2007, 05:44 PM

I see you dont have much room with that GT-40 intake to install a breather. You should look into the Spyder Intake from Coast High Performance. I have one on my car and for ease of working on the car it is the best money I ever spent. It works good on my 347 N/A motor but they work better than just about every intake on the market with a S/C or turbo. Of course not as good as a sheet metal intake but better than the mass market ones. Check them out...

GTXRacing · February 21st, 2007, 05:51 PM

Now that's a nice engine bay!! LOL

How much was that rear seat delete kit?

demononwheels · February 21st, 2007, 06:25 PM

Made it myself.
I think I paid 30.00 on ebay for instructions on how to make it.
The seller sent me a pattern or telpate of the two pieces of plywood I needed to cut along with pictures and a list of materials I need.
I can't remember his name but try this e-mail address
betrezra@aol.com
ask about BETR-Rear-Seat-Delete-(BRSD) template and instructions instead of the kit.
I looked on ebay just now and it seems he's making them and selling them completly made.
Hope this helps

Tony_90fox · February 21st, 2007, 06:30 PM

How bad is it leaking. I know it is a common thing in high mileage cars but you said yours has 6000 miles. Mine will not hold oil for 3000 miles. But it doesnt leave pools of oil either. But my seal is leaking a bit too.

GTXRacing · February 21st, 2007, 06:36 PM

I got an RCI Fuel cell in my beast. Sucks gas much smoother and car doesen't sound like it's starving and burping

demononwheels · February 21st, 2007, 06:39 PM

I know what I wrote on my Subject post, but it's more a drip. When it stops, the oil spot is about the size is a silver dollar. You can't actually see it dripping or leaking.
The dripping starts after being run and has sat for about 30 min.
Just pisses me off. Its my fault.

demononwheels · February 21st, 2007, 06:49 PM

I still have the factory tank in mine. I have a 255 lph forced induction pump inside the tank and a t-rex inline fuel pump. Along with factory fuel rails, adjustable fuel regulator and 42lb injectors, I've hade no problems.

demononwheels · February 21st, 2007, 06:52 PM

I have a set of Vortech fuel rails and Aeromotive a1000 pump but have never needed it.

February 12th, 2007, 09:51 PM	#1
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	Rear main seal leainking My rear main seal has been leaking for a while. The engine has around 6000 miles on it. So while the clutch was being replaced, the rear main seal was also replaced. That got done today. My car was delivered to my house today while I was at work. When I drove up to my house, I notice a spot of oil underneth the car. After being replace it still leaks. I think I have to much crankcase pressure. What can I do ? I do have one breather on the passenger side valve cover. Every once and a while the dip stick will be pushed up from the pressure. Oh yea, I running around 14 psi of boost. But not today. Not with the new clutch. Its a 1993 ford Mustang. 508 rwhp. Any suggestions? I'm thinking I have to live with the oil leak.

February 12th, 2007, 09:57 PM	#2
terribleonexx88 Enthusiast Join Date: Oct 2006 Location: new england Posts: 813	do u have a crankcase breather __________________ 85 4 banger stanger, it likes to sneeze alot when i hit the gas

February 12th, 2007, 10:23 PM	#3
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,095	Do you have breathers in both valve covers? __________________ Rotating The Earth 1320 Feet At A Time!! The very existence of flamethrowers proves that sometime, somewhere, someone said to themselves, “You know, I want to set those people over there on fire, but I’m just not close enough to get the job done.”

February 12th, 2007, 10:47 PM	#5
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,095	Put one in the drivers side too... And make sure its baffled also otherwise oil will shoot out. __________________ Rotating The Earth 1320 Feet At A Time!! The very existence of flamethrowers proves that sometime, somewhere, someone said to themselves, “You know, I want to set those people over there on fire, but I’m just not close enough to get the job done.”

February 21st, 2007, 12:45 PM	#7
GTXRacing Enthusiast Join Date: Apr 2006 Location: Greenville, Texas Posts: 734	Then he would be rebuilding that pressure again... Stangzilla's right. yeah i got a BS autozone breather and i have oil spalltering all over the place. I'm about to replace my cam again and new rockers and lifters so maybe I can restore my crankcase pressure now the car will be able to breather a little wider and better. Crankcase = Where you put your oil in. __________________ THE BEAST IS FOR SALE!!! GTX RACING & PERFORMACE CLUB OF TEXAS Meets and greets, drag racing and good eats, you know you want it. GTX Racing Tony P. 214-257-3635 http://www.moddedmustangs.com/forums...vehicle&CID=43

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February 12th, 2007, 10:44 PM	#4
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	Crankcase breather? Only the passenger side valve cover has a breather.

February 21st, 2007, 11:48 AM	#6
quick50stng Newbie Join Date: Sep 2006 Posts: 14	I would run two hoses off the valve covers from the breather holes into an oil accumulator(catch can) with a breather.

February 21st, 2007, 02:02 PM	#8
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	I'll have to remove the upper gt-40 intake to get the the drivers side valve cover and drill a hole in it for another breather. Thanks for the help.

February 21st, 2007, 02:41 PM	#11
GTXRacing Enthusiast Join Date: Apr 2006 Location: Greenville, Texas Posts: 734	Now that's a nice engine... I wish I had $10,000 to spare... No it's ok man, I actually misunderstood what you said to tell the truth, you did ay "Drivers Side... Yeah looks like you have no choice but to drill until the damn thing. Hell it's new parts... I hate to see a brand baby spaking new engine get cut into so early but no choice. But hell, you still might have to do that, get some other type of valve covers that you can see where the fitting is, and maybe, just maybe you might not have to do that. Then you can sell your valve covers from that engine to me LOL kiddin, but you could sell em to make something back. since you wouldn't need em. __________________ THE BEAST IS FOR SALE!!! GTX RACING & PERFORMACE CLUB OF TEXAS Meets and greets, drag racing and good eats, you know you want it. GTX Racing Tony P. 214-257-3635 http://www.moddedmustangs.com/forums...vehicle&CID=43

February 21st, 2007, 03:24 PM	#12
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	You have me on a rolllll. Here are some more pics http://amarilloracers.com/phpBB2/alb...php?pic_id=584 http://amarilloracers.com/phpBB2/alb...php?pic_id=784 http://amarilloracers.com/phpBB2/alb...php?pic_id=580 http://amarilloracers.com/phpBB2/alb...php?pic_id=579 http://amarilloracers.com/phpBB2/alb...php?pic_id=581 http://amarilloracers.com/phpBB2/alb...php?pic_id=785

February 21st, 2007, 05:44 PM	#13
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,095	I see you dont have much room with that GT-40 intake to install a breather. You should look into the Spyder Intake from Coast High Performance. I have one on my car and for ease of working on the car it is the best money I ever spent. It works good on my 347 N/A motor but they work better than just about every intake on the market with a S/C or turbo. Of course not as good as a sheet metal intake but better than the mass market ones. Check them out... __________________ Rotating The Earth 1320 Feet At A Time!! The very existence of flamethrowers proves that sometime, somewhere, someone said to themselves, “You know, I want to set those people over there on fire, but I’m just not close enough to get the job done.”

February 21st, 2007, 05:51 PM	#14
GTXRacing Enthusiast Join Date: Apr 2006 Location: Greenville, Texas Posts: 734	Now that's a nice engine bay!! LOL How much was that rear seat delete kit? __________________ THE BEAST IS FOR SALE!!! GTX RACING & PERFORMACE CLUB OF TEXAS Meets and greets, drag racing and good eats, you know you want it. GTX Racing Tony P. 214-257-3635 http://www.moddedmustangs.com/forums...vehicle&CID=43

February 21st, 2007, 06:25 PM	#15
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	Made it myself. I think I paid 30.00 on ebay for instructions on how to make it. The seller sent me a pattern or telpate of the two pieces of plywood I needed to cut along with pictures and a list of materials I need. I can't remember his name but try this e-mail address betrezra@aol.com ask about BETR-Rear-Seat-Delete-(BRSD) template and instructions instead of the kit. I looked on ebay just now and it seems he's making them and selling them completly made. Hope this helps __________________ http://img135.imageshack.us/img135/1...00040040aq.jpg

February 21st, 2007, 06:36 PM	#17
GTXRacing Enthusiast Join Date: Apr 2006 Location: Greenville, Texas Posts: 734	I got an RCI Fuel cell in my beast. Sucks gas much smoother and car doesen't sound like it's starving and burping __________________ THE BEAST IS FOR SALE!!! GTX RACING & PERFORMACE CLUB OF TEXAS Meets and greets, drag racing and good eats, you know you want it. GTX Racing Tony P. 214-257-3635 http://www.moddedmustangs.com/forums...vehicle&CID=43

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February 21st, 2007, 06:39 PM	#18
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	I know what I wrote on my Subject post, but it's more a drip. When it stops, the oil spot is about the size is a silver dollar. You can't actually see it dripping or leaking. The dripping starts after being run and has sat for about 30 min. Just pisses me off. Its my fault. __________________ http://img135.imageshack.us/img135/1...00040040aq.jpg

February 21st, 2007, 06:49 PM	#19
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	I still have the factory tank in mine. I have a 255 lph forced induction pump inside the tank and a t-rex inline fuel pump. Along with factory fuel rails, adjustable fuel regulator and 42lb injectors, I've hade no problems. __________________ http://img135.imageshack.us/img135/1...00040040aq.jpg

February 21st, 2007, 06:52 PM	#20
demononwheels Regular Join Date: Jun 2006 Location: Texas Panhandle Posts: 69	I have a set of Vortech fuel rails and Aeromotive a1000 pump but have never needed it. __________________ http://img135.imageshack.us/img135/1...00040040aq.jpg

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