Wanderlodge Owners Group  
BuyByeBlueBird.com
Donate

Go Back   Wanderlodge Owners Group > Mechanic's Corner > Caterpillar 3208 Solutions

Caterpillar 3208 Solutions This sub-forum is hosted by Mike Hohnstein who has been at this kind of thing for 50+ years now, guess I'm addicted. The saga has been all about progressively larger shop space since then. Honestly, never wanted to get into the CAT 3208's that were originally considered to be a throwaway engine but that's all that works in a FC in my world. Same thing with my Ford toter, that came with a NA, too much effort to hang in a 6, so been at it with the CAT V-8 for 20 years now. In reality you can get excellent life out of a CAT 3208 if it's built correctly. Post your questions about the CAT 3208 engines here and Mike will try to help you out.

Site Search:
Reply
 
Thread Tools
  #1  
Old 10-05-2017
kunzelj's Avatar
kunzelj kunzelj is offline
Senior Member
 
Join Date: Jan 2008
Location: Oakville
Posts: 454
Default 3208TA Oil Leak

My 3208TA with 4100 engine hours is in very good shape from what I can tell. Lots of white smoke on start up, but I always plug in the circulating heater for a day before starting and the top end is up to 35 degrees C when I start it.

Cold starts are the tap of a key. Very little black smoke under WOT. Top end of the engine is dry. Front of the engine is dry besides a small leak from the compressor.

My only problem is the oil leaking from the rear of the engine. It's enough to amount to a quart per 300 miles. It appears to be leaking from above the starter as the back end of the starter is wet. Front axle is pretty wet as well.

I have read all of the stories here about horrific oil leaks and I'm guessing I'm close to that.

With 4100 hours, what should be done?

Drop the front axle, replace front bags, take the transmission to a ZF shop for a check up, replace the rear main seal and bell housing gasket, maybe do the main bearings while it's in the shop?

Opinions? suggestions?

Thanks!
__________________
Jeff Kunzelman
Oakville, Manitoba, Canada
1988 FC-35SB 300HP/ZF (2016-current)
1978 GMC Royale 26' (2015-2016)
1982 FC-33SB 250HP (2007-2009)
Reply With Quote
  #2  
Old 10-05-2017
Mike Hohnstein's Avatar
Mike Hohnstein Mike Hohnstein is offline
Senior Member
 
Join Date: Jan 2008
Location: NW Milwaukee Metro Area
Posts: 4,554
Default

https://images.truckpartsinventory.c...NWZ6oQ0n_f.jpg
https://images.truckpartsinventory.c...Kmr9zcac_f.jpg

Upper link shows the gasket flange surface appropriate for a turbo engine, lower is for a NA but illustrates the oil pan flange.

I'd be getting the under side steam cleaned and verify exactly where the leak is from before coming to any conclusions.
__________________
Mike Hohnstein
FMCA 97824
'83FC35rb
Germantown, WI/Myrtle ID
www.AutoTransDesign.com

http://s767.photobucket.com/user/mhohnstein/library/
Reply With Quote
  #3  
Old 10-05-2017
kunzelj's Avatar
kunzelj kunzelj is offline
Senior Member
 
Join Date: Jan 2008
Location: Oakville
Posts: 454
Default

I'm guessing my '88 will end up at your shop next summer some time. There is one local shop here in Winnipeg that I might trust, but having never done this specific job there will be some variables.

I can get it steam cleaned and dye to see where the leak is coming from but any oil leak from the back end would result in the transmission being dropped, or are there other quick-fix leaks that could result in oil dripping from the back end?

How is 4100 hours for typical life from what others have seen?

My father had a 3406E with 1 million miles - that would be at least 10,000 hours. I don't hear many talking about that with the 3208.
__________________
Jeff Kunzelman
Oakville, Manitoba, Canada
1988 FC-35SB 300HP/ZF (2016-current)
1978 GMC Royale 26' (2015-2016)
1982 FC-33SB 250HP (2007-2009)
Reply With Quote
  #4  
Old 10-05-2017
Mike Hohnstein's Avatar
Mike Hohnstein Mike Hohnstein is offline
Senior Member
 
Join Date: Jan 2008
Location: NW Milwaukee Metro Area
Posts: 4,554
Default

Another thought, verify the vent on road side rear valve cover is not clogged up.
__________________
Mike Hohnstein
FMCA 97824
'83FC35rb
Germantown, WI/Myrtle ID
www.AutoTransDesign.com

http://s767.photobucket.com/user/mhohnstein/library/
Reply With Quote
  #5  
Old 10-05-2017
Darryl's Avatar
Darryl Darryl is offline
Senior Member
 
Join Date: Aug 2013
Location: Daytona Beach
Posts: 589
Default

My FC looked oil covered like yours sounds. It was one of the seals on the injector pump collecting road dirt. I had the pump rebuilt, extended and marked the 3 tubes coming from the pump. Now I will know where the leak is coming from if it's coming from the pump. At least it may direct the leak below the engine, axle and etc.

D
__________________
Darryl and Rita
Daytona Beach, FL
87 35' FC
Reply With Quote
  #6  
Old 10-05-2017
kunzelj's Avatar
kunzelj kunzelj is offline
Senior Member
 
Join Date: Jan 2008
Location: Oakville
Posts: 454
Default

Interesting point on the crankcase breather. I did notice a lot of exhaust from this breather when I first got the coach, but much less now. I also notice my oil pressure gauge is very high at cruising speed and 40psi at warm idle. I figured the sender or gauge wasn't working, but maybe the crankcase has some pressure on it.
__________________
Jeff Kunzelman
Oakville, Manitoba, Canada
1988 FC-35SB 300HP/ZF (2016-current)
1978 GMC Royale 26' (2015-2016)
1982 FC-33SB 250HP (2007-2009)
Reply With Quote
  #7  
Old 10-05-2017
BobsBus BobsBus is offline
Senior Member
 
Join Date: Oct 2014
Location: Fort St. James
Posts: 97
Default oil leak

I always look up when tracing an oil leak, you say above the starter, but how far up? Are you shure it is not high enough to be a valve cover gasket or from under the turbo mount area? Some 3208s have an oil pressure sender in the rear of the V, and when the get old, theytend to leak.
__________________
Bob Fritchey
Fort St. James, BC
1985 PT 40 BB
Reply With Quote
  #8  
Old 10-05-2017
kunzelj's Avatar
kunzelj kunzelj is offline
Senior Member
 
Join Date: Jan 2008
Location: Oakville
Posts: 454
Default

So I took a close look again tonight. No oil from the valve covers or turbo. Very dry.

I did pull the PCV breather and it was pretty oil soaked but didn't appear plugged. How much oil is normal to have in the breather media?
__________________
Jeff Kunzelman
Oakville, Manitoba, Canada
1988 FC-35SB 300HP/ZF (2016-current)
1978 GMC Royale 26' (2015-2016)
1982 FC-33SB 250HP (2007-2009)
Reply With Quote
  #9  
Old 10-05-2017
birds_first's Avatar
birds_first birds_first is offline
RV Appraiser
 
Join Date: Jan 2008
Location: Louisville, KY
Posts: 5,300
Default

Quote:
Originally Posted by kunzelj View Post
So I took a close look again tonight. No oil from the valve covers or turbo. Very dry.

I did pull the PCV breather and it was pretty oil soaked but didn't appear plugged. How much oil is normal to have in the breather media?
If you are experiencing what I had it could be the rear main housing seal. I had the same symptoms, heavy oil loss, I cleaned the engine several times. We finally noticed oil coming from behind the starter. I took it to CAT and they confirmed it has the housing seal. With the ZF they had to pull the front axle down and remove the ZF. At which time I took my ZF to Colmar, PA and had it gone through with new gaskets & seals. It does not harm your engine to let it leak as long has you keep pouring oil to it, but you will leave serious marking every time you stop. It was embarrassing that is why I had mine repaired. No more issues...
__________________
John McGinnis,
95WB42MD S60, Mid-Entry "B-Rex"
88FC35 (SOLD)
Louisville, KY/Jeffersonville, IN
2000 Jeep Cherokee
Our Blog
Our Location
https://allwheelappraisals.com/
Email or call only - please do not send PM

johns.mcginnis @ hotmail.com
502-417-5681
.,=====o00
//___l__,\____\,___
l_--- \___l----[]lllllll[]
_(o)_)___(o)_)--o-)_
Reply With Quote
  #10  
Old 10-06-2017
iamflagman's Avatar
iamflagman iamflagman is offline
(1943-2018) Forum Co-founder/Administrator
 
Join Date: Dec 2007
Location: Hopkins
Posts: 11,506
Default

Quote:
Originally Posted by kunzelj View Post
So I took a close look again tonight. No oil from the valve covers or turbo. Very dry.

I did pull the PCV breather and it was pretty oil soaked but didn't appear plugged. How much oil is normal to have in the breather media?

Here is another area to check from an older thread of mine, about a coolant leak that also was an oil leak


Quote:
When I got to the Bonneville Salt Flats in Utah I could leave my trailer and race car on the salt overnight, but I could not leave the 'Bird there and stay in it overnight, so I found a campsite along with Randy, Rob and Thomas at the Nugget Casino in Wendover, Nevada and the day I parked just the coach there I noticed a significant coolant leak in the form of a steady dripping from the engine block area, it was coming from the seam between the engine accessory plate where the water pump, alternator, fan assembly were mounted to. Evidently this was the leak that all of the stop leak was being used for, that we thoroughly flushed from th system and the new coolant filter had also helped to remove what remained and now we had to come up with a plan to stop the leak short of removing the engine. We put our collective heads together and decided to try Restaurant Grade Black Pepper in the amount of 3 heaping tablespoons directly into the coolant and then topped off the coolant, after letting the engine idle for a while the leak was stopped. we all felt good about ourselves and our decision.

That held just fine so after the race I headed back east and before I left I turned the coolant filter back on and headed out, when I stopped for the night at Rock Springs, Wyoming I noticed the coolant was dripping again, so I took some pictures of the leak and with the coolant mixed with the small oil leak from the same area, it looked very messy. In the morning when it was cool I added 2 gallons of coolant and again added 3 more tablespoons of the black pepper, waited until the dripping stopped, then turned the coolant filter off and headed further east, when I stopped for the night it was dripping again. I made a call to my coolant engineer friend who made some suggestions of what I could use, he warned me about staying away from the organic type stop leaks as that was some of the STUFF that we had found inside the old radiator and he suggested that I look for a stop leak consisting of some aluminum or copper metallic material to stop the leak, so from that point until I could find the right stop leak to use, I just added distilled water to the coolant. The rest of the story can be seen in the following pictures.


The picture on the left was taken on September 19, 2011 with the engine turned off, but it would still drip until the coolant started to cool down. The picture on the right was taken on November 5, 2011 with the engine running.





I got an education in what you see in the package is not necessarily what you are getting inside or after mixing it with coolant.





This was what did the trick and stopped the leak, it took a total of 3 bottles to treat the complete cooling system in my 'Bird. I will leave it in the system for the recommended period and then make a decision if I will filter out what remains in the coolant.





And now you know the rest of the story!!!!
__________________

JOHN FINN
FORUM MODERATOR-ADMINISTRATOR
1982 FC35RB
I'm NO EXPERT, but I did stay in the FINN'S INN EXPRESS last night
HOPKINS, SOUTH CAROLINA
VISIT THE FINN'S INN EXPRESS REMODELING ADVENTURE AND TECH. TIPS
I'M SO SLOW ON THE HILLS,THAT I GET TO SMELL THE FLOWERS AS I GO BY.....AND WATCH THEM GROW TOO!! NOT SO MUCH ANYMORE
Visit the WILD HARE RACING website
REMEMBER 9/11
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Air leak soon to be free Tires, Wheels, Brakes, Steering and Suspensions 19 09-18-2016 03:22 PM
Electronics / Digital Instrumentation for Mechanical 1990 3208TA KenS 'Bird Projects & Modifications 2 06-16-2016 05:23 PM
LPG Leak Boatman1197 Vehicle Issues 26 05-07-2015 06:11 PM
CAT 3208TA in SP Start-Stop Problem Mikel Engine 52 09-24-2012 02:03 PM
3208TA engine fan tulipvendor50 Engine 3 02-27-2009 01:51 AM

Web Search:

All times are GMT -4. The time now is 01:42 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.