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I have a 2004 Stingray 185 LS with a 135hp Volvo Penta 3.0clp-c…

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I have a 2004 Stingray...
I have a 2004 Stingray 185 LS with a 135hp Volvo Penta 3.0clp-c 4 cylinder engine. The problem I’m having is that when I go hard from an idle to WOT then engine bog and will actually die if don’t pull back on the throttle. If I take the rpms up just a little before going full throttle it works fine. I wasn’t having this problem until I took the boat in for the replacement of the leaking power steering fluid cooler. The shop says it has nothing to do with them and the cooler replacement but as I said it was working fine before I took it in. The idle rpms under load are around 900.
I’ve adjusted the acceleration pump per Holley’s video with no improvement. There are two strong fuel steams from the accelerator pump when I activate the pump lever. One thing I’ve noticed is that if I just very lightly touch the accelerator pump lever is squirts gas down the carb throat and then engine begins to stall and then recover.
I’ve cleaned the distributor cap and rotor and gapped the spark plugs to the specified .045” (two of them were way out), but still no improvement. I use Stabilizer in the gas and never let the tank level go down below 2/3rds of a tank.
Submitted: 3 years ago.Category: Boat
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Answered in 10 minutes by:
6/11/2015
Marine Mechanic: Jason, Marine Mechanic replied 3 years ago
Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 18,203
Experience: Degree in Marine Technology. Gas and diesel marine mechanic.
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Hello my name is ***** ***** am I speaking with?
Before the carb is touched the first things that should be checked are compression and ignition timing. If there is a problem with either one that will cause issues that make it look like it's a carburetion problem, when it really isn't. Do you have the ability/tools to check those?
Also, the idle speed is a little high, has it ever idled lower than that?
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Customer reply replied 3 years ago
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer reply replied 3 years ago
I was looking for an actual answer to my problem, not being told to run a bunch of tests. It doesn't appear you know that actual solution so I'm not satisfied with your answer and am not pleased I paid $26 to to be told to run a some tests.
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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