cured, left rear oil pan leak - Dodge Diesel

Haulin_in_Dixie · 05-31-2005, 12:42 AM

There is currently another member with the same problem and I have seen that this leak is a weak spot on the pan design. I have heard of several of them.

For months I chased a bad oil leak near the rear of the engine on the drivers side. I finally found it to be cracks at two of the pan bolt holes. I finally got around to doing a backyard fixup on it.

I was in Lowe's the other day and saw a piece of way overpriced steel bar that measured 3/4 x 1/4 inch. I thought that was just about what I was looking for so bought it. A couple of hours bending and grinding and I made a support that fits into the pan rail exactly, from the last hole going foreword for six holes. I cleaned it all down real good and a liberal coating of black high temp sillycone sealer. Had to use longer bolts, but it seems to be holding well.

It is amazing how much mess a gallon and a half of oil in 7000 miles can make. Hopefully this will be a perminent cure, I sure don't want to have to pull the pan.

BigBlue · 05-31-2005, 12:52 AM

Why? You should have it R&R'ed in less than an hour.

Mopar1973man · 05-31-2005, 08:56 AM

I agree with Big Blue...

Seriously, I think if to put a good amount of sealant on your gasket plus the bar I think it will work good. Some of the old Chevy engines did something like that to keep the pans from leaking.

But if the cracks start to grow more you might have to have the pan brazed or replaced...

AKDSLDOG · 05-31-2005, 03:37 PM

According to the manual you must pull the tranny first to have enough room to drop the pan.

..... Anyone know differant from experiance? Mine is leaking at the same spot.

mini14 · 05-31-2005, 05:08 PM

i have read other posts, u dont have to remove tranny if u remove motor mounts and lift engine enough to clear sh.t in the way

RAM2940 · 05-31-2005, 06:40 PM

There are alternate methods besides pulling the tranny. If your truck is still covered under the cummins engine warrenty, you should be able to have it repaired at the dealer. I just had a new gasket with the black sylicone put on a couple days ago.

JD farmboy · 05-31-2005, 11:34 PM

I have the same tranny and I just replaced the rear main, and when I took off the plate that holds the seal, I noticed the pan gasket was hard and brittle, If you can at all I would recommend changing the gasket or having it done, however, I didn't change mine

, I just put that purple flange sealer on it and it seams to be holding ok, I would highly recommend that stuff, it works great, you can get it at your local Case IH dealer or John Deere dealer. And no, you don't have to remover the tranny to R&R the oil pan.

Haulin_in_Dixie · 06-01-2005, 02:46 PM

With all due respect, you can't seal a pan gasket from the outside. I had crackes in the pan flange, different problem.

JD farmboy · 06-01-2005, 04:32 PM

Sorry, my bad.

tool · 06-01-2005, 09:10 PM

I had an old F150 with a 300 I6.

Pan gasket leaked like a sieve!!, didn't have time to go through the hassle of replacing the pan, so I took a tube of plain old $3 clear sillicone calking and calked all the way around the outside of the pan, smearing it liberally with my finger. Never leaked a drop again in the 40 or 50,000 miles I had the truck after that.

I've also sen that done on tractors etc with the same result.

Haulin_in_Dixie · 06-01-2005, 09:59 PM

Ok glad it worked for you and JD.

05-31-2005, 08:56 AM	#3
Mopar1973man Registered User Join Date: Apr 2004 Location: New Meadows, Idaho Posts: 2,148 My Photo Gallery My Classified Ads	I agree with Big Blue... Seriously, I think if to put a good amount of sealant on your gasket plus the bar I think it will work good. Some of the old Chevy engines did something like that to keep the pans from leaking. But if the cracks start to grow more you might have to have the pan brazed or replaced... __________________ 2002 Dodge Cummins - Way too many mod to list.

05-31-2005, 03:37 PM	#4
AKDSLDOG Chapter President Join Date: Mar 2003 Location: Wasilla, Alaska Posts: 322 My Photo Gallery My Classified Ads	According to the manual you must pull the tranny first to have enough room to drop the pan. ..... Anyone know differant from experiance? Mine is leaking at the same spot. __________________ 02 Dodge 2500 4x4 cummins~6-spd~quad cab~jet black~DPP 4" exhuast~scotty II with hole cut~soon to have my gauges hooked up. My Baby! Silencer ring is now GONE! Music to my ears! VP44 Kills=4 LP Kills=0

05-31-2005, 05:08 PM	#5
mini14 Registered User Join Date: Feb 2005 Location: New York Posts: 1,013 My Photo Gallery My Classified Ads	i have read other posts, u dont have to remove tranny if u remove motor mounts and lift engine enough to clear sh.t in the way __________________ 99 auto 4x4 4.10 rear,no s ring,bhaf, edge ez, 4" s.s. magnaflow 05 Q.C. auto, stock....for now...

05-31-2005, 06:40 PM	#6
RAM2940 Registered User Join Date: Jul 2004 Location: va beach, va Posts: 377 My Photo Gallery My Classified Ads	There are alternate methods besides pulling the tranny. If your truck is still covered under the cummins engine warrenty, you should be able to have it repaired at the dealer. I just had a new gasket with the black sylicone put on a couple days ago. __________________ 01 2500 QC, 4x4, SB, 3.54, 47RE

05-31-2005, 11:34 PM	#7
JD farmboy Registered User Join Date: May 2005 Location: Ohio Posts: 48 My Photo Gallery My Classified Ads	I have the same tranny and I just replaced the rear main, and when I took off the plate that holds the seal, I noticed the pan gasket was hard and brittle, If you can at all I would recommend changing the gasket or having it done, however, I didn't change mine , I just put that purple flange sealer on it and it seams to be holding ok, I would highly recommend that stuff, it works great, you can get it at your local Case IH dealer or John Deere dealer. And no, you don't have to remover the tranny to R&R the oil pan. __________________ 2001 Dodge Ram 3500 DRW C&C, HO 24V CTD, NV5600 6 speed, flatbed, Autometer C2 EGT, boost and fuel pressure gauges, Edge Comp, Scotty Air II, silencer ring MIA, 4" MBRP Turbo Back, FASS pump, thats it (for now) 193,000 miles and counting Original VP44 died at 192,000 miles Future Mods: DDP Stage 3 injectors, Dual Disk Clutch Occupation: Case IH service technician Interests: farming, driving with my right window down :D (love to hear that 5.9 beller!)

05-31-2005, 12:52 AM	#2
BigBlue Banned Join Date: Feb 2002 Posts: 0 My Photo Gallery My Classified Ads	Why? You should have it R&R'ed in less than an hour.

06-01-2005, 02:46 PM	#8
Haulin_in_Dixie Registered User Join Date: Nov 2001 Location: Branchville, Alabama Posts: 4,199 My Photo Gallery My Classified Ads	With all due respect, you can't seal a pan gasket from the outside. I had crackes in the pan flange, different problem.

06-01-2005, 04:32 PM	#9
JD farmboy Registered User Join Date: May 2005 Location: Ohio Posts: 48 My Photo Gallery My Classified Ads	Sorry, my bad.

06-01-2005, 09:10 PM	#10
tool Registered User Join Date: Sep 2002 Posts: 1,462 My Photo Gallery My Classified Ads	I had an old F150 with a 300 I6. Pan gasket leaked like a sieve!!, didn't have time to go through the hassle of replacing the pan, so I took a tube of plain old $3 clear sillicone calking and calked all the way around the outside of the pan, smearing it liberally with my finger. Never leaked a drop again in the 40 or 50,000 miles I had the truck after that. I've also sen that done on tractors etc with the same result. __________________ '06 2500 Mega Cab, New Feb '07, 4x4 SLT loaded, 6 speed, Sun Roof, all the goodies, B&W Gooseneck hitch, Prodigy Controller,Stock so far. 160,000 Miles Towing 2009 Sooner Ranch SR724 Stock trailer Sold: '99 2500 Quad Cab 4x4 5spd. 24V CTD Short-box, Sport, Loaded, 30,000 # Draw-Tite Gooseneck hitch, stainless flares and grill insert, silencer ring gone, straight pipe with 6" tip. BHAF, Van Aaken Smartbox. 250,000 miles DTR Mega Cab Club member #9

06-01-2005, 09:59 PM	#11
Haulin_in_Dixie Registered User Join Date: Nov 2001 Location: Branchville, Alabama Posts: 4,199 My Photo Gallery My Classified Ads	Ok glad it worked for you and JD.

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