Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 04-07-2011, 09:31   #1
Registered User

Join Date: Sep 2010
Posts: 127
Volvo Penta 2002 Motor Surging

this thing surges worst at around idle, around 1700-2000 rpm its not really noticable(it cruises fine) But this problem has been driving me NUTS for about a week straight. Ive been dealing with the problem for the last 2 years as i had much more important things on the boat to fix. So i decided to try and tackle this problem head on this week and i have swapped out everything from injector pumps to injectors. I replaced all the fuel lines/fittings. I noticed yesterday very small air bubbles coming from the main return line into the tank(almost hard to see but im sure that i should be seeing only diesel right?. I just got a tip online about putting a clear hose on the main fuel line before the pump to watch for bubbles. Ive done that before thats how i knew i needed to have a water seperator hooked up on a diesel lol. I have an older raycore seperator with brand new filter/and have new engine filter. clear BRAND NEW diesel fuel is in the tank. I am very aware of the bleed process for this motor. I had a tiny leak in the small injector return line but i dont think that can suck in air?? I didnt replace the fuel lines with anything special i just used autozone cheap fuel line. SHould i have double clamped everything?? any ideas? thanks ahead of time, well im off to put a clear hose on the input line, ps i have the bosch injector pumps
albergsailor is online now   Reply With Quote
Old 05-07-2011, 10:22   #2
Registered User

Join Date: Sep 2010
Posts: 127
Re: volvo penta 2002 motor surging

fixed it!! the regulator bar that goes from injector pump to injector pump was ever so slightly bent, when i would check the movement of the bar with the motor on it seemed to move very easily but when the motor was off i noticed it was hanging slightly, i fixed the bar so the regulator moved the way it should and bam problem fixed. i didnt look so close at that bar at first because i had bought it used from another motor i took it out of myselff cuz i bent up my origional, I think i bought the used one slightly bent and didnt notice it.. going sailing today!
albergsailor is online now   Reply With Quote

motor, penta, volvo

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Volvo Penta MD 3B Help praphael Engines and Propulsion Systems 3 11-08-2011 18:30
Volvo Penta MD2020 Seawater Pump Running Backwards akmike Engines and Propulsion Systems 4 15-07-2011 07:06

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 02:19.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.