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Old 03-23-2001, 09:59 AM
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Join Date: Feb 2001
Location: Austin, Texas
Posts: 70
87 190Dt

To replace the front crank seal are there any special tools required? Is it necessary to remove the radiator and what size is the bolt holding on the pulley? Thanks

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Old 03-24-2001, 07:45 PM
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Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
Can't give you the bolt size, but I have never removed a harmonic balancer and/or pulley setup w/o removing the radiator. It's in the way, you can really carve up your hands, you stand a good chance of damaging it, and, if you need to use a puller, you gotta have some space to work. You may also need a seal extractor tool if you don't remove the front cover, (not usually necessary).
Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.
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Old 03-26-2001, 09:55 PM
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Join Date: Jan 2000
Location: PA
Posts: 5,440
The seal seals against a sleeve that goes onto the crankshaft. I found that is easier to get another sleeve, put the seal on the new sleeve, slide the sleeve and seal on the crank, push the new seal in place and then remove the sleeve. Possibly you can get the original sleeve off the crank and use that to install the seal similar to above. Make sure you install the lip of the seal to the rear of the engine. That is why you have to put the seal on the sleeve first because the sleeve will only go into the seal from the larger diameter side.

You have to remove the radiator, at least I did on my 300SD.

You can probably pry the old seal out with a screwdriver.

Socket size is 27mm and should be a deep socket. This socket also fits injectors on the diesels and it is also handy to have to turn the engine by hand for timing, adjusting the valves, etc.

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