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Old 30 September 2004, 12:14   #1
CJL's Avatar
Country: UK - England
Town: London
Make: Ribcrafts
Length: 5m +
Engine: 150hp/2x115hp
MMSI: 235090215
Join Date: Oct 2002
Posts: 2,099
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Mercury 135 Optimax

Just after some thoughts;

Has anybody replaced the trim tilt motor on one of these engines? Can it be done yourself? On paper if I dismantle it and get the brushes replaced and the axle re-wound surely it should be an easy job .... if I can get the replacement seals from Barrus!?

Also has anybody else had problems with the engine cutting out at very low speed for an hour plus? A mechanic has suggested it may be the low speed fuel pump (its a diaphram one off the crankcase) may be perished. When it cuts out it just need the bulb priming and starts first time. Any ideas???



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Old 01 October 2004, 16:19   #2
Country: UK - England
Town: Looe
Make: Delta
Length: 4m +
Engine: Mercury
Join Date: Apr 2004
Posts: 1,332
Yeah it sounds like fuel pump diaphragms to me, if you prime it back up and you can feel the fuel go in then i think you should get a diaphragm kit for it.
As for the power trim its quite easy to take of but really you need some kind of lifting gear to support the engine, because once you remove the pump the only thing holding the engine to the leg is the steering tube. You will also have to loosen the steering tube to move each transom bracket out to give you enough room to get the pump out. Actually now i think about it probably better to get your local dealer to do it!!!.
You can get seal kits for them and brushes etc which can be difficult to change if you dont have the right service tools. Probably another dealer job!!.

I guess your engine is out of warranty?
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