Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 03-05-2017, 02:02   #1
Registered User

Join Date: May 2017
Posts: 1
Compression Question

Hi all,
I am looking at buying a 2008 Whittley with a Suzuki 115 outboard
On the report it shows the compression's as 200 200 195 and 205.
My question is should I be concerned about the last two readings


secrets is offline   Reply With Quote
Old 03-05-2017, 02:12   #2
Registered User

Join Date: Sep 2015
Location: Essex, England
Boat: Hartley Tahitian 48
Posts: 306
Re: Compression Question

Those reading sound fine.

A slight deviation is Ok - many things affect reading.

To test fully two readings should normally be taken - a Wet and a Dry reading.

paulajayne is offline   Reply With Quote
Old 03-05-2017, 02:32   #3
Moderator Emeritus
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 32,051
Images: 240
Re: Compression Question

Greetings and welcome aboard the CF, secrets.
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

GordMay is offline   Reply With Quote
Old 03-05-2017, 06:01   #4
Coastal Cruiser.
uncle stinkybob's Avatar

Cruisers Forum Supporter

Join Date: Mar 2016
Location: P.N.W.
Boat: Lancer 30-5
Posts: 675
Re: Compression Question

I would not be very concerned until there is around 10% differential between cylinders, but even 1 cylinder with 10% would have me looking to tear it down for rings.
uncle stinkybob is offline   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
Repair question - deck rot and compression under the plate gabe1111 Deck hardware: Rigging, Sails & Hoisting 11 01-11-2016 08:31
Compression post repair Sergy Deck hardware: Rigging, Sails & Hoisting 12 01-02-2009 17:29
Is there a formula for Converting Compression Ratios Chief Engineer Engines and Propulsion Systems 8 01-06-2008 04:38
New purpose built compression beam installed fastcat435 Multihull Sailboats 5 03-03-2008 01:21
Compression Testing Diesel jimisbell Engines and Propulsion Systems 4 11-02-2007 12:44

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:27.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.