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BlueDevil

CincoBravo

Jr. Member
Joined
Oct 14, 2018
Messages
133
Loc.
Oxford, MS
I believe I have a rear main seal leak. Does anyone have experience with BlueDevil Rear Main Sealer? This seems like a Band-Aid repair but is it a good one? Are there any downsides?
 

needabronco

Bronco Guru
Joined
Jul 2, 2004
Messages
6,411
Loc.
Prescott/Farmington
Check your PCV balve if its stuck or clogged it can push oil out of the seals. But if the seal is bad the only thing that will fix it is a new seal.
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
47,500
Yep, what they both said.
Just how big is the leak Cinco? And how much was yours leaking striper, that it was able to take care of it?

Paul
 

Broncobowsher

Total hack
Joined
Jun 4, 2002
Messages
34,884
I usually find the leak to be further up. china rail at the back of the intake or valve covers. Dribbles down the bellhousing.
 
OP
OP
C

CincoBravo

Jr. Member
Joined
Oct 14, 2018
Messages
133
Loc.
Oxford, MS
DirtDonk-- I can't for the life of me figure out how to include a picture in this reply, but I was able to figure out how to upload a photo to my gallery (also on this site). The oil shown is after the Bronco sat for about a week after a short drive. I hope you're able to find the pic.
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
47,500
Got it, thanks. The link shows up in my notification e-mail.
That's a pretty big drip!

I'll try to post it up here for you. You can put it in your gallery, or garage, as you found out. But to post directly up to the site you have to be a contributor for 12bucks a year.
Otherwise you can also use an online hosting site and link the images here.
Or someone with the yellow "contributor" beneath their username can do it.
Theoretically anyway...

Let's see now...
Oil_Leak.jpg
http://classicbroncos.com/photos/showphoto.php/photo/36655/limit/recent

I think that's it. Both the link and the image.

Paul
 

LilMixedUp

Full Member
Joined
Feb 27, 2016
Messages
161
Loc.
Bonaire
As DirtDonk noted that looks like a pretty big leak... however oil is like blood a little goes a long way. Before I'd tackle the main seal, whip it down really good two-three times and see if you can chase the leak. Oil will follow path of least restance, so it could be running from another source. As mentioned above, check everything first.
 
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