no power

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opunui
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Posts: 110
Joined: Aug 11th, '08, 12:21
Location: Honolulu,HI

no power

Post by opunui »

The problem..port motor reaches rpm out of gear but when i place her in gear i get no more than 14oo rpm's. the stbd motor is fine in and out of gear.the things i have done.changed fuel filter,plugs, dist.cap and rotor,checked timing.thinking fuel pump? Can't wait for the repower!
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1977 Bertram FBC 1688 M77L
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Carl
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Joined: Jul 5th, '06, 06:45
Location: Staten Island NY

Post by Carl »

Is it carburated?? If so check accelerator pump.

Is ethanol screwing with your tank a possibility...

Bad fuel...

Could choke be stuck...



Does the shaft turn freely, that is easlily by hand. Something could be wrapped on shaft or prop, motor mounts could have dropped and alignments way off.
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opunui
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Posts: 110
Joined: Aug 11th, '08, 12:21
Location: Honolulu,HI

Post by opunui »

Sim thanks for your reply.it is carburated with new quadra jets. i use non ethanol fuel and the stbd works fine.boat was just cleaned, bottoms no problem.?i'll check the choke but i remember when i fished it monday the choke was free.
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1977 Bertram FBC 1688 M77L
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Charlie J
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Joined: Jun 29th, '06, 09:14
Location: freeport n.y

Post by Charlie J »

yes check the props, you might have picked up somthing on one of the props, good call sim
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ScottD
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Joined: Jun 29th, '06, 17:25
Location: Palmetto,FL

Post by ScottD »

Check the fuel line from the tank to the filter for restrictions, especially the fittings. I you have seperate pick-up tubes for each engine, check that too. A run-up @ no load is lot less fuel flow than loaded. It's happened to me before.

ScottD
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lobsta1
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Joined: Jun 29th, '06, 07:47
Location: Beverly, Ma

Post by lobsta1 »

If they are Mercruisers & the plug wires are more than three years old: get rid of them!
Al
NITES OFF
1978 B33 FBC

Al
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