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  #1  
Old 03-01-2010, 01:04 PM
vstech's Avatar
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Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,194
Low mileage 617 in my 83 SD is spewing oil.

it looks to be coming from the front main seal...
with all the horror stories Ive read about the balancer bolts failing...
y'all got recommendations?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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  #2  
Old 03-01-2010, 02:00 PM
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Join Date: Jan 2002
Posts: 18,355
Take it to the car wash and thoroughly clean the area to confirm it's coming from that seal. There are a couple of other leak sources that I seem to recall look like a front main leak.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #3  
Old 03-01-2010, 02:52 PM
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Join Date: Mar 2008
Location: Buffalo NY
Posts: 1,817
Not a bad job, done it twice.

As always thoroughly degrease the leak area and drive to confirm it's not the lower pan gasket or other some other spot. The amount of oil & scale on the front of the block and around the balancer has warranted a barbecue brush and purple power in all 3 of the 61x's I've been that close too.

Is the balancer nasty or corroded? How are the cap screws? The horror stories I've read seem to result from a botched prior install. The galled bolt somebody had probably resulted from someone having to overtighten the bolt to mash the balancer back on. My bolt came out fine after I broke it with a 1/2" bar resting on the frame and bumped the starter.

Order the spacer ring as well. If the wear band on the spacer is significantly off center, you may be able to flip it around.

I have a puller I can mail you if the spacer doesn't want to come off for you.

I have Bent Magma's diy recipe from *********.com, thorough, useful, a few comments I could add. Happy to lend it to you, then you can buy parts from Phil.

My advice:
Pull fan, radiator & shroud, shift the condensor up, and you can look right and the shaft w/out a mirror

Soak the balancer to 275 *F pick it up in your oven mits, run outside, line it up and slide it on. You have about 1/2 second to get it right once metal is next to metal. Dry ice on the crankshaft might give you more playtime, might damage the seal too. 1st time I did the job I got it right on 1st attempt, 2nd time it was like the 3rd or 4th. If you don't feel it slide home and see it seated well & lined up perfect, pull it off, repeat.

A friend told me he read a test of penetrants, best one over WD40, liquid wrench, PB blaster was 50/50 Acetone & ATF. Presoak and don't crap your pants till the big bolt is uncooperative.
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CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times
It's hard to
more likely to
concentrate on
have an accident
two things
when you're on
at the same time.
a cell phone.


www.kiva.org It's not like there's anything wrong with feeling good, is there?
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  #4  
Old 03-01-2010, 11:29 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,194
Quote:
Originally Posted by moon161 View Post
Not a bad job, done it twice.

As always thoroughly degrease the leak area and drive to confirm it's not the lower pan gasket or other some other spot. The amount of oil & scale on the front of the block and around the balancer has warranted a barbecue brush and purple power in all 3 of the 61x's I've been that close too.

Is the balancer nasty or corroded? How are the cap screws? The horror stories I've read seem to result from a botched prior install. The galled bolt somebody had probably resulted from someone having to overtighten the bolt to mash the balancer back on. My bolt came out fine after I broke it with a 1/2" bar resting on the frame and bumped the starter.

Order the spacer ring as well. If the wear band on the spacer is significantly off center, you may be able to flip it around.

I have a puller I can mail you if the spacer doesn't want to come off for you.

I have Bent Magma's diy recipe from *********.com, thorough, useful, a few comments I could add. Happy to lend it to you, then you can buy parts from Phil.

My advice:
Pull fan, radiator & shroud, shift the condensor up, and you can look right and the shaft w/out a mirror

Soak the balancer to 275 *F pick it up in your oven mits, run outside, line it up and slide it on. You have about 1/2 second to get it right once metal is next to metal. Dry ice on the crankshaft might give you more playtime, might damage the seal too. 1st time I did the job I got it right on 1st attempt, 2nd time it was like the 3rd or 4th. If you don't feel it slide home and see it seated well & lined up perfect, pull it off, repeat.

A friend told me he read a test of penetrants, best one over WD40, liquid wrench, PB blaster was 50/50 Acetone & ATF. Presoak and don't crap your pants till the big bolt is uncooperative.
wow, 275F... won't that hurt the new seal?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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  #5  
Old 03-02-2010, 12:15 AM
moon161's Avatar
Formerly of Car Hell
 
Join Date: Mar 2008
Location: Buffalo NY
Posts: 1,817
Not from what I've seen. Throw the old seal in the oven, see what happens.
__________________
CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times
It's hard to
more likely to
concentrate on
have an accident
two things
when you're on
at the same time.
a cell phone.


www.kiva.org It's not like there's anything wrong with feeling good, is there?
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  #6  
Old 03-02-2010, 11:11 AM
toomany MBZ's Avatar
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Join Date: Nov 2006
Location: central Va
Posts: 7,820
Quote:
Originally Posted by moon161 View Post

I have a puller I can mail you if the spacer doesn't want to come off for you.

I would be curious about this, could you post a pic?
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84 CD
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  #7  
Old 03-02-2010, 08:26 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,194
well it's my daily driver until the crazy mechanics get my pickup's transmission figured out. (over three months... still no idea what's wrong with the truck...)
anyway, as soon as they figure it out, I'll start fixing the truck...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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