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Any "How-To" Rebuild B1 Drive Trim Pump Out There?

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Any "How-To" Rebuild B1 Drive Trim Pump Out There?

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Old 04-23-2017, 01:18 PM
  #21  
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Originally Posted by underpsi68
Is that the latest cap? It appears to have the slots cut into the threads, the one BUP recommended not buying.

Thanks
Found the number in the highest Bravo serial number listing at BAM 0W250000 & Up and listed for rough water apps. The prior standard cap 36-861597 is NLA

http://www.mercruiserparts.com/bam/s...0969/11210/170
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Old 04-23-2017, 06:21 PM
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[ATTACH=CONFIG]566725[/ATTACH]. Rough water caps. The only way to do it. Into a puke bottle. Vents great and no foaming
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Old 05-08-2017, 09:47 AM
  #23  
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There are detailed trim pump rebuild procedures in the Bravo Stern drive factory service manual. At least in my 1992 copy.
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Old 05-10-2017, 10:26 AM
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Originally Posted by NightHawk
There are detailed trim pump rebuild procedures in the Bravo Stern drive factory service manual. At least in my 1992 copy.
Not in 1996 Merc. Nor aftermarket manual. That's why I ask.

Replaced the old caps that had just a hole in the top with those suggested herein. Being the sun pad to gunnel gap is right over the trim pumps water may have got in that way. I have the trim ram rebuild kits but will empty and fill the trim motor reservoirs with Quicksilver Trim Fluid in the (short) interim to see if it clears up.

Last edited by Tractionless; 05-10-2017 at 10:28 AM.
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Old 05-16-2017, 09:49 PM
  #25  
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Originally Posted by AllDodge
Found the number in the highest Bravo serial number listing at BAM 0W250000 & Up and listed for rough water apps. The prior standard cap 36-861597 is NLA

http://www.mercruiserparts.com/bam/s...0969/11210/170
I just wanted to uodate: I ordered this cap. It is the same cap that came on my 280 trim tabs pump that doesn't leak a drop.

Thanks!!
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Old 06-12-2017, 11:32 PM
  #26  
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All 4 rams rebuilt. Trim pumps removed and when tilting for removal fluid came running out of the o-ringed connection between the pump and reservoir. I have new o-rings coming and I'll also add perfect seal but damn the single bolt connection method is hot garbage! No matter how tight I cinch it down the reservoir will rotate. Other than perfect seal how can I ensure the seal is water tight? I'm quite confident this is the point where water was introduced into the trim system when doing a heavy bilge cleaning about 1 year ago.

On another note whne bench bleeding the trim motors all 4 pickup socks were disintegrated and sludge present in the reservoirs. I have no idea how both systems were still working so well.

Keith
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