BD240 Main Bearing Cap Seals...Help!


Rusty Driver
Rusty Driver

Posts: 147

Joined: Thu Aug 08, 2019 8:14 am

Location: Rostraver, Pennsylvania

Post Mon Jul 27, 2020 10:43 am

BD240 Main Bearing Cap Seals...Help!

Hello all,

I'm looking for some advice...as usual...
Reassembling our BD240, and I can't seem to get the two rubber seals installed into the rear main bearing cap halfs. I have attached photos to better explain.
These are the two tapered rubber pieces that get pushed into the sides of the number 4 main bearing cap to seal the seams. I get them 3/4 of the way in and they stop. I ruined one of them already as well, so I have to try to find a set, which I am sure will be fun....
The book says to make a tool out of welding rod, but these are so tight I am sure welding rod would bend. I attempted to use an allen wrench with the ball type end, but had no luck and ended up punching through the end of one of the seals....
Is there a trick to this that anyone is aware of?
Also, my parts manual shows what looks like a rope seal installed, as opposed to the rubber ones that came with my kit and are depicted in my maintenance manual. I think I recall removing a rope type seal as well.... Could I be using the wrong seals...
Thanks in advance for any help! This has me frustrated...

Bryon
Attachments
Eng Seal Book.jpg
Eng Seal book1.jpg
Eng Seal.jpg

Rusty Driver
Rusty Driver

Posts: 147

Joined: Thu Aug 08, 2019 8:14 am

Location: Rostraver, Pennsylvania

Post Mon Jul 27, 2020 10:59 am

Re: BD240 Main Bearing Cap Seals...Help!

I just noticed that this rear main seal kit comes with two different sized side seals. I wonder if my kit had seals that are too large... The site (Rock Auto) shows this for a later serial number, but maybe that's the issue...
Attachments
Seal.jpg

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