Reply
 
Thread Tools Search this Thread
 
Old 13 March 2014, 16:16   #1
Member
 
Country: UK - Wales
Town: monmouth
Boat name: lady jue 3
Make: breaksea
Length: 9m +
Engine: inboard
Join Date: Feb 2013
Posts: 4
Yamaha 422sti pistons

I have a 2010 422sti 285 hp engine that I need to rebuild I need a couple of pistons I know the block is a Toyota land cruiser 4.2 I have had conflicting reports on pistons Does anyone know for sure weather they are Toyota parts or are they 4x the price yamaha


Any help would be appreciate


Thanks rob
__________________

__________________
customcharter is offline   Reply With Quote
Old 13 March 2014, 16:23   #2
Member
 
Country: UK - England
Town: Plymouth
Boat name: 2XS
Make: Halmatic Pacific 24
Length: 7m +
Engine: 135hp Honda X2
Join Date: Jan 2004
Posts: 509
Hi Rob
The pistons are different, the Yamaha ones are very much stronger, the land cruiser ones will melt .
__________________

__________________
Ian A

www.austinmarine.co.uk
Ian Austin is offline   Reply With Quote
Old 13 March 2014, 16:28   #3
Member
 
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: reiver 3.8/regal3760
Length: 10m +
Engine: 40hp 2st 2x6lp 315
Join Date: Jul 2009
Posts: 1,494
I rebuilt a 240hp Yamaha engine a few years ago & I used Toyota pistons however they were slightly different to the Yamaha pistons I think the rings were tapered on one set of pistons & parallel on the other

it did work out cheaper to replace all 6 pistons with the aftermarket Toyota items than buying rings from Yamaha

part of the problem you will face is sourcing the pistons as no one keeps them in stock & there are a few variations depending on the year of the Toyota engine. The engine shop I used ordered a couple of variations for me to compare.

the engine ran fine with the Toyota pistons fitted
__________________
beamishken is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 14:24.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.