Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 13-08-2016, 09:10   #16
Registered User
leftbrainstuff's Avatar

Join Date: May 2011
Location: San Francisco and Australia
Boat: Liberty 458
Posts: 2,029
Re: engine mount trouble

Originally Posted by a64pilot View Post
When you go to replace the bolts, I'd make sure I had at least grade 5 bolts, do NOT use hardware store crap bolts, go to a fastener store and get real grade 5 or maybe grade 8 bolts.
On second thought I'd consider studs as it seems you can always get a nut off, but sometimes not bolts.
I'd also use plenty of anti-seize on the bolts as one day you may want to remove them.
Be real careful with easy outs, I've busted them off before, and your sort of screwed then, cause nothing I have found will drill out an easy out.
Using a pilot to keep the bit centered and drilling all the way through a bolt will sometimes make it easier to get out. get a few new good drill bits and replace when one gets dull, oil the hole being drilled of course with cutting oil
Grade 8 for sure. Grade 5 are a cheaper construction spec where there is always plenty of redundancy which is not the case for engine mounts. You'll see the multiple dash markings on the head. 3 for grade 5 and 6 for grade 8.

If access is an issue you might like to replace with socket head cap screw or mushroom head internal wrenching set screws.

No hardware store unmarked crap.

Access can be tricky so the quote of 8 hrs is probably not unreasonable especially since it includes alignment.

Ensure plenty of never seez or loctite on the threads. I prefer to lock wire torqued bolts. You will need to check they havent backed off regularly.

Sent from my SM-N900T using Cruisers Sailing Forum mobile app

leftbrainstuff 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
Advice for trouble seeking an engine miss. Dulcesuenos Engines and Propulsion Systems 1 03-01-2013 22:04
Engine Trouble with Volvo md2001 Paul Banderet Engines and Propulsion Systems 8 30-04-2011 09:02
BIG engine trouble bamboo Engines and Propulsion Systems 16 10-09-2008 18:10
big engine trouble results bamboo Engines and Propulsion Systems 12 12-08-2008 07:34
Beginning of season engine trouble sneuman Engines and Propulsion Systems 14 15-04-2008 12:15

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:47.

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.