Bravo rebuild spec?
#1
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So I'm moving right along on rebuilding my Bravo 1. I noticed that the service manual (merc manual 1989) shows a different arrangement in the bearing carrier than I have on mine (1998 drive). My question is whether the specs in the 1989 manual apply to my 1998 drive. My gut feel is that the bearing preloads and gear backlash should be the same, but if anyone here knows otherwise, I'd really appreciate your input.
Second question. The manual says to coat the bearing carrier with "Perfect seal". I am not sure what they are talking about, but I'm thinking of using non-hardening permatex.
Thanks in advance,
Rene
Second question. The manual says to coat the bearing carrier with "Perfect seal". I am not sure what they are talking about, but I'm thinking of using non-hardening permatex.
Thanks in advance,
Rene
#2
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There are 2 different styles of bearing carrier arrangements to get the correct preload. The older ones use shims, while the newer uses a crush ring that gets tightened (crushed), not torqed, until you acheive the correct propshaft free turning preload. Gotta use the correct specs as they are totally different. My '99's had the crush ring. Don't know when the change over was.
Perfect Seal Is Mercs non hardening sealer.
Perfect Seal Is Mercs non hardening sealer.
Last edited by US1 Fountain; 11-27-2006 at 04:51 PM.
#3
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While the Merc manual says to use a crush collar in later lower cases, you can set up the lower bearing pre-load by using shims . I have done it and had no problems.
#4
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Originally Posted by checkmate454mag
While the Merc manual says to use a crush collar in later lower cases, you can set up the lower bearing pre-load by using shims . I have done it and had no problems.
Nordic95
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Originally Posted by US1 Fountain
Just how much load can you put on the crush collar in reverse? ![Big Grin](/forums/images/smilies/biggrin.gif)
![Big Grin](/forums/images/smilies/biggrin.gif)
Nordic95
#7
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Originally Posted by US1 Fountain
Just how much load can you put on the crush collar in reverse? ![Big Grin](/forums/images/smilies/biggrin.gif)
![Big Grin](/forums/images/smilies/biggrin.gif)
Rene
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Originally Posted by US1 Fountain
There are 2 different styles of bearing carrier arrangements to get the correct preload. The older ones use shims, while the newer uses a crush ring that gets tightened (crushed), not torqed, until you acheive the correct propshaft free turning preload. Gotta use the correct specs as they are totally different. My '99's had the crush ring. Don't know when the change over was.
Perfect Seal Is Mercs non hardening sealer.
Perfect Seal Is Mercs non hardening sealer.
The manual that I'm using shows the crush ring but also has a needle bearing in the carrier. Mine only has a tapered roller bearing in the carrier. I'll look into a different manual and check.
Thank you,
Rene