Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 28-04-2015, 11:36   #1
Registered User

Join Date: Apr 2015
Location: West Coast FLA
Boat: 1978 Pearson 424 Ketch
Posts: 424
pearson 424 w60 overheating

Hello All.

I'm new to this forum, as a member. but have been reading it for a while and am impressed with all the knowelage, imparted here.

I have a pearson 424 with a w60 auxiliary. It started overheating at around 1200 rpms. I noticed the water flow out the exhaust was weak. I acid bathed the heat exchanger and flushed the fresh water side and it helped a little I then was able to get up to 1500 rpm before overheating. I found that the raw water hose on the suction side was collapsing. I replaced that with pipe and hose at each end for vibration and installed a new raw water pump. things got better, but still overheated at 1800 rms I've flushed the whole raw water system, including the through hull, with muriatic acid. it improved the water flow. but am still overheating at close to 2000 Rpms. I'm stumped. there is no smoke out the exhaust, white or balck. I've been looking for a way to bypass the h2o heater but haven't found a diverter valve that will handle the temp load.

Any replays are greatly appreciated.
tinkrman69 is offline   Reply With Quote
Old 28-04-2015, 20:43   #2
Senior Cruiser
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,067
Re: pearson 424 w60 overheating

Have you removed and inspected the exhaust injection elbow?
DeepFrz is online now   Reply With Quote

heating, overheating, pearson

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
Westerbeke W60 Fresh Water Pumps IceMan Engines and Propulsion Systems 0 22-02-2012 10:52
Looking for a V-Drive (Pearson 424) s/v 'Faith' Engines and Propulsion Systems 10 13-05-2011 08:19
pearson 424 ketch??? jerryscooper Monohull Sailboats 14 01-11-2007 19:07
Pearson 419, 422 & 424 Ishmael Monohull Sailboats 3 03-09-2007 08:46
pearson 424 salty_dog_68 Monohull Sailboats 7 18-10-2005 14:22

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 16:34.

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.