Changing CSD Seals in LUV with Pictures

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Changing CSD Seals in LUV with Pictures

Postby dorf » Sun Oct 26, 2014 4:16 pm

Changing the CSD Seals on an Isuzu diesel, installed in a LUV. Pickup
I obtained the seal kit from “Paul” on this site.

This procedure is doable but requires an experienced hand in doing so. I’d lay some towels or rags under the work area so you will be able to rescue parts that fall.
Pictures are in sequence

I soaped my project in PB Blaster for a few days. Maybe not needed but I thought it would be wise to do so.
You need a 3/8 drive, 10 mm hex socket with at long extension to enable to get some torque from out side the wheel well to remove the cap.

Mine was extremely hard to break loose, but after that it just spun off.
The cap screws off and there are shims that are located on a post in the cap ( that secures the long spring). Mine fell of and I discovered 4 of them later.

The seal housing has 4, # 10 metric bolts with a Philips head insert (female).
Removing these takes some dexterity, with out dropping. There is spring force but doable if you are careful. –Now, Replace the seal. It is a special stepped affair.

Reassembly is the reverse naturally, but it is difficult to get the bolts started without dropping everything.
I secured each bolt to a long Philips screwdriver with black electricians tape . ( I held the driver in a vice while doing so, in order to make the attachment tight as possible. It worked quite well
Finally install the cap, spacer and long spring. I used a similar arrangement to install the cap as the seal housing.
You have to PUSH and install everything.

The fuel line and copper washers at the top is sort of a pain but with a little finesse it will screw in by hand-then you will be able to tighten with a wrench. It is #12 metric
Then torque everything when finished
So that sums it up.

Picture 4166 Start

4167--#10 Hex driver on 3/8 extension

4168 Showing long spring

4171 The cap, spring, and fuel connection

4173 Cap, long spring, o ring seal, Housing and Big spring

4176 Bolt taped to screwdriver with electricians tape

4177 Installed seal housing

4178 Completed installation

Pictures were supposed to be in order Top down-but-it didn't work out that way-They are in order bottom up But you should get the idea
Last edited by JoeIsuzu on Sun Oct 26, 2014 5:25 pm, edited 1 time in total.
Reason: I used your notes and the "Place inline" option to move the pictures to the order you gave. There were some left over. --Jack

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Re: Changing CSD Seals in LUV with Pictures

Postby JoeIsuzu » Sun Oct 26, 2014 5:27 pm

Nice job! I'll leave this here for a while for comments, and eventually move or copy it the "How-to" section. :)


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Re: Changing CSD Seals in LUV with Pictures

Postby puttputtinpup » Sun Oct 26, 2014 6:21 pm

Good job! Thanks for the post. and...I hope the new seal fixed your leak. Hopefully, the engine runs better for you also.

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Re: Changing CSD Seals in LUV with Pictures

Postby poprivetj1 » Mon Nov 17, 2014 10:13 am

I need to do this proceedure on my 86 Trooper! Thanks for the post!

FAA licensed A&P mechanic 25+ years wrenching on helicopters
1986 Isuzu Trooper Factory T/Diesel (3rd Gen rods)
84 Mercedes 300D turbo diesel
89 Isuzu 2wd truck, 5 speed with 1.8l 4fb1 diesel conversion (SOLD)
85 2wd diesel pup (SOLD)

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Re: Changing CSD Seals in LUV with Pictures

Postby weiner0stick » Mon Nov 17, 2014 10:44 pm

Never had to do this.
Now if I have to, it will be a ton easier.
THANKS plus HIGHFIVE. :wink:

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