STD Tuning Engine Rear main seal lessons

Rear main seal lessons

Rear main seal lessons

 
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Torkey
Dirty Diesel

220
07-01-2013, 01:46 PM #1
I wanted to share the knowledge from a long hard lesson we learned on our 617.
We did a rebuild of our engine over the winter and replaced the rear main seal. We eventually replaced it three more times after repeated failures.
A local machine shop mentioned that they have had problem with the newer rope seals because they no longer make them out of asbestos.
Fortunately, the original Mercedes part is asbestos. And we were surprised to find out when it arrived that it the dimensions are different from the other seals we tried. Approximately .02" thicker in height and width of the cross section.
So if you are having problems with your rear main seal. Try the original Mercedes part.

79 300CD
82 300SD
Dirty Little Freaks Racing
Torkey
07-01-2013, 01:46 PM #1

I wanted to share the knowledge from a long hard lesson we learned on our 617.
We did a rebuild of our engine over the winter and replaced the rear main seal. We eventually replaced it three more times after repeated failures.
A local machine shop mentioned that they have had problem with the newer rope seals because they no longer make them out of asbestos.
Fortunately, the original Mercedes part is asbestos. And we were surprised to find out when it arrived that it the dimensions are different from the other seals we tried. Approximately .02" thicker in height and width of the cross section.
So if you are having problems with your rear main seal. Try the original Mercedes part.


79 300CD
82 300SD
Dirty Little Freaks Racing

willbhere4u
Six in a row make her go!

2,507
07-01-2013, 04:22 PM #2
good to know

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
07-01-2013, 04:22 PM #2

good to know


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

Simpler=Better
PORTED HEAD

2,127
07-02-2013, 08:01 AM #3
Did you sniff the asbestos seal before putting it in?

This is a great example of why banning materials from all applications isn't the best solution. Pipe insulation where it might flake off near a ventilation system? Definitely ban it.

In a car where it will be bathed in oil and contained? Don't ban it cmon' guys

Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
Simpler=Better
07-02-2013, 08:01 AM #3

Did you sniff the asbestos seal before putting it in?

This is a great example of why banning materials from all applications isn't the best solution. Pipe insulation where it might flake off near a ventilation system? Definitely ban it.

In a car where it will be bathed in oil and contained? Don't ban it cmon' guys


Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?

Torkey
Dirty Diesel

220
07-02-2013, 03:40 PM #4
(07-02-2013, 08:01 AM)Simpler=Better Did you sniff the asbestos seal before putting it in?

This is a great example of why banning materials from all applications isn't the best solution. Pipe insulation where it might flake off near a ventilation system? Definitely ban it.

In a car where it will be bathed in oil and contained? Don't ban it cmon' guys

Funny the thought of smelling it never crossed my mind. Tongue

79 300CD
82 300SD
Dirty Little Freaks Racing
Torkey
07-02-2013, 03:40 PM #4

(07-02-2013, 08:01 AM)Simpler=Better Did you sniff the asbestos seal before putting it in?

This is a great example of why banning materials from all applications isn't the best solution. Pipe insulation where it might flake off near a ventilation system? Definitely ban it.

In a car where it will be bathed in oil and contained? Don't ban it cmon' guys

Funny the thought of smelling it never crossed my mind. Tongue


79 300CD
82 300SD
Dirty Little Freaks Racing

MFSuper90
Budget Builder

1,533
07-05-2013, 05:43 PM #5
(07-02-2013, 08:01 AM)Simpler=Better Did you sniff the asbestos seal before putting it in?

Are you telling me that I shouldn't have stuffed my pillow with asbestos? Huh

Didn't want my head catching on fire in the middle of the night Wink

'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         
MFSuper90
07-05-2013, 05:43 PM #5

(07-02-2013, 08:01 AM)Simpler=Better Did you sniff the asbestos seal before putting it in?

Are you telling me that I shouldn't have stuffed my pillow with asbestos? Huh

Didn't want my head catching on fire in the middle of the night Wink


'82 300D -3" straight pipe, ALDA deleted, 3in1 glowshift gauge, HX30, egr-less manifold, A/W intercooler Big Grin
'14 Ram 6.7l cummins -G56 handshaker, wishing it was deleted         

 
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