Re: Oil pan bolt leaks
[Re: davenc]
#2959697
08/31/21 09:00 PM
08/31/21 09:00 PM
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Joined: Jan 2003
Posts: 15,197 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,197
Omaha Ne
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We've had good success by letting the engine sit as long as possible for the oil to drain down. remove 1 bolt at a time. brake clean the bolt and block threads Use a small amount of permatex Ultra Black on the bolt threads and if possible the block as well. ( wooden stick Q-tips work well) Reinstall Move onto the next bolt until all the leakers are done. Do not overtighten when reinstalling as the gaskets may not like it
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Re: Oil pan bolt leaks
[Re: TJP]
#2959736
08/31/21 10:34 PM
08/31/21 10:34 PM
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Joined: Mar 2009
Posts: 2,457 Sydney,Australia
tex013
top fuel
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top fuel
Joined: Mar 2009
Posts: 2,457
Sydney,Australia
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been battling that for the last year or so . Bolts will loosen and then weep oil across gasket. Tried permatex gray , red and blue loctite . I was using ARP bolts , never had this before with factory bolts . Also has got the stock cork/rubber gasket . Just refitted factory bolts yesterday with loctite blue . I did find an old moparts link with a guy saying could not get the arp bolts to stay tight . I also have a couple different Felpro gaskets to try - #1808 performance gasket black compressed , #1834 steel core blue non stick (top fuel type )
Tex
PS : the #1808 seems similar to the Milodon gasket
Last edited by tex013; 08/31/21 10:35 PM.
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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Re: Oil pan bolt leaks
[Re: davenc]
#2959766
09/01/21 01:11 AM
09/01/21 01:11 AM
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Joined: Feb 2003
Posts: 2,810 Sobieski Wi
bee1971
master
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master
Joined: Feb 2003
Posts: 2,810
Sobieski Wi
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The very reason I love the Superformance oil pan gaskets - Two gaskets with the windage tray
The material doesn’t compress , Non wicking , I don’t use rtv with these gaskets
And then the reproduction factory OEM oil pan bolt set that you can buy today , the oil pan bolts come with a dry blue thread locker already installed on threads
Perfection
Zero drips or tightening of bolts in years
Last edited by bee1971; 09/01/21 01:14 AM.
1971 Dodge Charger Superbee 2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded Siberian Huskies
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Re: Oil pan bolt leaks
[Re: davenc]
#2959838
09/01/21 10:04 AM
09/01/21 10:04 AM
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Joined: Mar 2007
Posts: 3,275 West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,275
West Coast, USA
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Remember the pair of bolts that go into the rear main seal holder are a few threads shorter than the rest of them. Are you using split washers? Brake or carb clean the holes and bolts, blow them out/off with air and seal with Permatex ultra seal.
I use the Hughes oil pan hold down flange reinforcing plates now days too. They require longer bolts. Not too long as its easy to crack out the ends of the holes into the crankcase.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Oil pan bolt leaks
[Re: davenc]
#2960188
09/02/21 01:05 AM
09/02/21 01:05 AM
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Joined: Aug 2009
Posts: 1,315 Ohio
jlatessa
pro stock
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pro stock
Joined: Aug 2009
Posts: 1,315
Ohio
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Nope on the split washer, and I think the torque spec on pan bolts will not compress a normal split washer enough to be effective.
Maybe an internal star....
Joe
Last edited by jlatessa; 09/02/21 01:06 AM.
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Re: Oil pan bolt leaks
[Re: Cab_Burge]
#2960325
09/02/21 02:59 PM
09/02/21 02:59 PM
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Joined: Jan 2003
Posts: 8,156 Plymouth, MI
Blusmbl
master
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master
Joined: Jan 2003
Posts: 8,156
Plymouth, MI
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I bought a composite windage tray from Summit and have been pretty happy with it - molded in modern rubber o-ring style gasket on both sealing surfaces. After I installed it and a new pan (old one was crunched), I still had leaks that were coming from the front of the engine - pulled out the bolts that were going into the timing cover, RTV'd them, reassembled, and now it has finally stopped leaking!
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
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Re: Oil pan bolt leaks
[Re: davenc]
#2960541
09/03/21 08:50 AM
09/03/21 08:50 AM
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Joined: Jan 2003
Posts: 8,156 Plymouth, MI
Blusmbl
master
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master
Joined: Jan 2003
Posts: 8,156
Plymouth, MI
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Does you motor have a stroker crank? I wonder if these off the shelf composite windage trays will clear a 3.91" crank.
I need to think about whether to just try to seal the bolts or pull the pan and start over.
Thanks! They offer two sizes of them if I remember correctly - one for 3.75", and I think the other for 4.25". Mine is a stock stroke 440 so I used the 3.75" one. At 3.91" I'm sure you could use the 4.25" stroke version but it likely won't give you as much of a benefit as one specifically made for the 3.91" stroke.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
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Re: Oil pan bolt leaks
[Re: cudaman1969]
#2961934
09/07/21 05:36 PM
09/07/21 05:36 PM
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Joined: Mar 2003
Posts: 2,485 PA
moparacer
top fuel
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top fuel
Joined: Mar 2003
Posts: 2,485
PA
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Superformance gasket and ARP pan stud kit here. Best setup for the Milodon pans and scrapers.
67 Barracuda street/bracket car 11.27-119 68 Dart 502 BB 8.70s-152 414 cid SB Dragster 7.65-174
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