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Thread: Trim Pump Fluid Advice
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04-11-2020, 06:48 AM #15000 RPM
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Trim Pump Fluid Advice
I just woke up my 89 Mercury 150 from it's winter sleep yesterday. It was a glorious cloud of Seafoam blue smoke that filled the yard I'll be doing all the usual maintenance for the the season but was wondering if I should try to change the trim pump fluid. Ive had the engine for a few years now and have never had a problem or leak, it's the three ram style. I'm kind of a if it aint broke don't fix it kind of guy. But if I should any tips or techniques would be helpful and also suggestions for type and brand of fluid. The wife and i were taking the Checkmate out this weekend but typical Outerbanks weather, it went from 70* to 50* overnight.
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04-11-2020, 07:04 AM #2Banned
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If it is the original fluid from 1989, I would change it. If unsure how old it is, what does it look like? I would probably change it if unknown.
It may be just me, but I change those things every so often, depending on use. For what it costs and the time it takes, I feel better knowing that I am running clean fluids.
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James Thompson thanked for this post
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04-11-2020, 02:21 PM #3
ATF
Dave1980 Cougar 19 tunnel,90 2.4L Bridgeport EFI in middle of restoration.
1988 BAJA Sunsport 186, 96 225 Pro Max
79 12' Auminum, 95 Merc 9.9
RIP Stu
"So many idiots, so few bullets"
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James Thompson thanked for this posttux974 liked this post
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04-12-2020, 07:00 AM #4
I agree on the atf fluid. Seems to run a bit faster than oil also
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04-12-2020, 09:45 PM #5
Type F or Dex Merc?
1990 Shadow bass boat w/ 2.4 200 Merc. Totally resto'd boat and love it!
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04-12-2020, 09:51 PM #6
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Merc 2.5 liked this post
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04-12-2020, 10:41 PM #7
Thanks Dave
1990 Shadow bass boat w/ 2.4 200 Merc. Totally resto'd boat and love it!
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