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+--- Thread: Oil leak (/showthread.php?tid=1132)
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Oil leak - Coco620 - 11-19-2016
Good evening guys been a while, just wondering if anyone had an oil leak on a 871 on back of engine that runs down the side makig it look like it's in between motor and transmission? Thanks in advance
RE: Oil leak - Waterloo - 11-19-2016
(11-19-2016 )Coco620 Wrote: Good evening guys been a while, just wondering if anyone had an oil leak on a 871 on back of engine that runs down the side makig it look like it's in between motor and transmission? Thanks in advance
That would more than likely be the bell housing gasket, I forget what it is called... It is not cheap to fix. Around $2400+ If you have it fixed, may as well have the clutch replaced while you are at it, as everything needs to come out..
RE: Oil leak - Hedley - 11-19-2016
camshaft cover behind the head.
RE: Oil leak - Hammerhead - 11-19-2016
(11-19-2016 )Coco620 Wrote: Good evening guys been a while, just wondering if anyone had an oil leak on a 871 on back of engine that runs down the side makig it look like it's in between motor and transmission? Thanks in advance
Yes, this is commonly referred to as the "rear structure" gasket. The correct Cummins part that is leaking is the "flywheel housing gasket".
I was quoted at 24 hrs to do the job.
I am planning to do it myself when I shut down for year end.
In order to replace the gasket;
Drop tranny,
Pull clutch,
Pull flywheel,
Either use overhead crane to support engine or: pull oil pan and use 2 jacks and blocks to support engine block,
Remove motor mounts,
Remove flywheel housing,
While your here take the time and R & R your rear crank seal because if you don't and it develops a leak, your coming right back here!
Clean housing & block, careful not to contaminate the oil galley at the top of the housing as this feeds #7 main bearing as well as the drivers side oil galleys,
Reassemble in reverse order...
Lots of fun!
RE: Oil leak - Coco620 - 11-19-2016
(11-19-2016 )Waterloo Wrote:(11-19-2016 )Coco620 Wrote: Good evening guys been a while, just wondering if anyone had an oil leak on a 871 on back of engine that runs down the side makig it look like it's in between motor and transmission? Thanks in advance
That would more than likely be the bell housing gasket, I forget what it is called... It is not cheap to fix. Around $2400+ If you have it fixed, may as well have the clutch replaced while you are at it, as everything needs to come out..
I was afraid to hear that lol since the clutch is a year old I even asked the shop to do it and rear main as well they didn't cuz it wasn't leaking..
RE: Oil leak - Coco620 - 11-19-2016
(11-19-2016 )Hammerhead Wrote:Lots of fun! Lol Thank you(11-19-2016 )Coco620 Wrote: Good evening guys been a while, just wondering if anyone had an oil leak on a 871 on back of engine that runs down the side makig it look like it's in between motor and transmission? Thanks in advance
Yes, this is commonly referred to as the "rear structure" gasket. The correct Cummins part that is leaking is the "flywheel housing gasket".
I was quoted at 24 hrs to do the job.
I am planning to do it myself when I shut down for year end.
In order to replace the gasket;
Drop tranny,
Pull clutch,
Pull flywheel,
Either use overhead crane to support engine or: pull oil pan and use 2 jacks and blocks to support engine block,
Remove motor mounts,
Remove flywheel housing,
While your here take the time and R & R your rear crank seal because if you don't and it develops a leak, your coming right back here!
Clean housing & block, careful not to contaminate the oil galley at the top of the housing as this feeds #7 main bearing as well as the drivers side oil galleys,
Reassemble in reverse order...
Lots of fun!
RE: Oil leak - Hammerhead - 11-20-2016
$108 for the rear seal,
$70 for the flywheel housing gasket,
$10 for the other little gasket,
$220 for motor mounts,
$100 for beer,
3 days under my truck,
PRICELESS!!!!
more beer
RE: Oil leak - Coco620 - 11-20-2016
(11-20-2016 )Hammerhead Wrote: $108 for the rear seal,You have a garage? Or live in warmer climates?
$70 for the flywheel housing gasket,
$10 for the other little gasket,
$220 for motor mounts,
$100 for beer,
3 days under my truck,
PRICELESS!!!!
more beer
RE: Oil leak - the missing link - 11-20-2016
(11-20-2016 )Hammerhead Wrote: $108 for the rear seal,
$70 for the flywheel housing gasket,
$10 for the other little gasket,
$220 for motor mounts,
$100 for beer,
3 days under my truck,
PRICELESS!!!!
more beer
Lol lol lol