Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 19-04-2015, 13:42   #31
Registered User

Join Date: Oct 2011
Posts: 2,045
Re: How big of a deal is hydrolock?

I filled a Perkins 4-108 almost full during a hard downwind run coming from Hawaii to Calif. The exhaust system had been replaced and the exhaust rise at the transom was not as high as was originally designed for the Peterson 44. Went to charge the batteries in the morning, and just got a clunk. The dip stick showed way over full, so I knew I was screwed. I had insisted that the owner supply a case of oil and several filters for the delivery, so I drained the oil and added fresh oil (plus filter) pulled the injectors and did a real stupid stunt. I went up to the cockpit and hit the starter with the injectors out. It turned over fine for about a minute, so I knew the water was out of the cylinders. I went back down to the engine room and was greeted by a horrible mess. I had sprayed salt water and diesel all over the side of the engine room. If you ever spin an engine without the injectors (or glow plugs) , put a sacrificial towel, rags or something to keep from spending hours cleaning your mess. Learn from my stupidity. The engine took a lot of cranking to start banging on one cylinder, then two, then smoothed right out and ran perfect for the rest of the trip. Did another oil change when we reaches shore, and dont think that the engine sustained any damage. Contrary to many opinions here, I feel that you are less likely to get major damage to an engine if a cylinder is almost full as opposed to a slightly filled cylinder, because the motor will come up against the hydrolock before the rotation forces have built up much speed. Worst case would probably be an engine with a big heavy flywheel that fired on one cylinder before the one with the water came up an locked up. That would be expensive. Best of luck. _____Grant.

gjordan is offline   Reply With Quote
Old 19-04-2015, 15:14   #32
Registered User

Join Date: Feb 2013
Location: Florida Keys
Boat: Catalina 30
Posts: 71
Re: How big of a deal is hydrolock?

Thanks to all who replied, and the OP for bringing the topic. This should be "required reading" for all new sailing vessel owners!

Skuzzlebutt is offline   Reply With Quote
Old 19-04-2015, 20:17   #33
Registered User
brownoarsman's Avatar

Join Date: Nov 2008
Location: Round Bay, Severn River
Boat: Pearson 28-1
Posts: 956
Re: How big of a deal is hydrolock?

These stories are great! Good to know I'm not the only one.
Pretty sure it was water in the cylinders. It is a diesel (a small one, the 5411) and not an issue with anything else. But, when I get the new water pump in we'll see! It's sort of ironic that by clearing the water passages (my first problem) I set myself up for the second! If only they'd stayed clogged!

Sent from my iPhone using Cruisers Sailing Forum

brownoarsman is online now   Reply With Quote

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
Centerboards- A maintenance nightmare, or no big deal? JulieMac Monohull Sailboats 44 07-06-2014 18:58
Deal or no deal captainbri Monohull Sailboats 4 03-04-2014 22:40
Make a Deal-Get a Deal- Used Boat Gear lynnrgardner Commercial Posts 0 09-12-2013 10:42
Yeah, no big deal. Im just gonna install these port gaskets real quick Moonpie Deck hardware: Rigging, Sails & Hoisting 3 23-02-2013 06:18

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 15:33.

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.