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Old 04-04-2016, 15:09   #1
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Chrysler engine question

Hi there!
I have a Bluewater with 2 Chrysler engines.. One, I can engage transmission at 700 rpm and work like a champ..
But the other need 1000/1200 rpm to engage.. go less and engine quit.. First I tough could be a dirty carburator.. I clean, remove, send to re manufactured.. you named, I did..
Could be transmission?? go in and out marina with 2 engines at 1K rpm..humm.. not a good idea..
Suggestions???
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Old 04-04-2016, 15:53   #2
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Re: Chrysler engine question

It could honestly be anything from maladjusted carb to ignition issues, vacuum leak, stuck exhaust valve, all kinds of stuff.
Did you adjust the two "idle" screws on the carburetor for highest idle?
Heck it could even be a bad tachometer.


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Old 04-04-2016, 18:38   #3
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Re: Chrysler engine question

Hi there!
I did but I gonna check air on gas hose.. ignition is electronic and tachometer is adjusted by a flash gun so seems like it's ok...
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Old 04-04-2016, 19:35   #4
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Re: Chrysler engine question

Might sound crazy, but I wouud suggest suggest new set of spark plugs.

Sounds like you have to bring the rpm up above the idle circuit in the carb for success. So idle mixture, ignition timing, and spark plugs have the greatest effect there. Also a vacuum leak as A64 said.
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Old 04-04-2016, 23:31   #5
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Re: Chrysler engine question

Try hand turning the shafts to see if you have equal strain. Could be misalignment, bad trans or shaft bearing. Do a leak down test to see if engines are similar.
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Old 04-04-2016, 23:43   #6
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Re: Chrysler engine question

Inboards or sterndrives?
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Old 05-04-2016, 07:08   #7
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Re: Chrysler engine question

sorry.. inboards..
spark plug and cables are new.. but I gonna check misalignment or shaft bearing.. thanks
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Old 05-04-2016, 12:45   #8
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Re: Chrysler engine question

If the problem engine idles well and turns up to rated speed in neutral, I too would suspect the driveline, even something as simple as multiple wraps of fishing line between prop and strut or cutlass brg might cause this.... A slight overheating or lack of rpm at speed in the problem engine could also point in the driveline direction.
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Old 12-04-2016, 07:03   #9
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Re: Chrysler engine question

Solved! Gasket was wrong set (previous owner fix) and allow air go inside carb.
Also, somebody install without a wedge so carb flooded too
I put order for new (and right) gasket set.
Thanks everybody!
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