MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

Go to Thread: PreviousNext
Go to: Forum ListMessage ListNew TopicLog In


Justinb
Justin Broome

(26 posts)

Registered:
06/10/2009 12:33PM

Main British Car:


Pinning Cylinder Sleeves while motor still in car
Posted by: Justinb
Date: June 15, 2014 02:13PM

I've got that annoying tick in my 4.2L V8 from the cylinder sleeves moving around. I've done my research and believe that pinning them to the block should resolve my problem.

Question is: Has anyone ever done this while in an MGB? Would I need to drop the front cross member to get to the #1 cylinder to do this?

Thanks!
Justin


tdecell
Trey Decell
MS
(31 posts)

Registered:
04/10/2010 12:13AM

Main British Car:
1974.5 MGB GT 3.9L Rover

authors avatar
Re: Pinning Cylinder Sleeves while motor still in car
Posted by: tdecell
Date: June 18, 2014 09:00PM

I saw this previously, good article....
[www.landroverresource.com]



Edited 1 time(s). Last edit at 06/18/2014 09:02PM by tdecell.


NCtim
Tim Shumbera
Western North Carolina
(239 posts)

Registered:
01/19/2012 04:35PM

Main British Car:


Re: Pinning Cylinder Sleeves while motor still in car
Posted by: NCtim
Date: June 25, 2014 03:57PM

Thanks for this. I think this is an easy fix for the ticking.

Tim


MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Pinning Cylinder Sleeves while motor still in car
Posted by: MGBV8
Date: June 25, 2014 05:10PM

Can't imagine there is room to work with the engine still in the car!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6470 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Pinning Cylinder Sleeves while motor still in car
Posted by: BlownMGB-V8
Date: June 26, 2014 12:48AM

I'd be a little concerned about getting the sleeve up against the head gasket well enough to get a good seal. Doesn't seem like combustion gasses trying to go between the sleeve and the block would be a good thing at all.

Jim


mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Pinning Cylinder Sleeves while motor still in car
Posted by: mgb260
Date: June 26, 2014 01:24PM

I originally posted a while back on pinning the sleeves. I agree with Carl and Jim B. First there is no room to work in the car and if the sleeve is moving and hammering the head gasket you should pull the heads and change the head gaskets first before pinning. I would put the motor on an engine stand for the work. If you look at the top of the sleeve there is a chamfer and it doesn't touch the fire ring. Bad design. It should be flat. The problem in my opinion is when the engine overheats and the aluminum block expands and then contracts the sleeves lets go. There are tabs on the bottom of the cylinder to hold the sleeve but nothing on top. Once loose, the rings grab the sleeve and move it up and down, that is the tapping noise you hear.


Justinb
Justin Broome

(26 posts)

Registered:
06/10/2009 12:33PM

Main British Car:


Re: Pinning Cylinder Sleeves while motor still in car
Posted by: Justinb
Date: July 07, 2014 12:40PM

Good discussion!

I realize and embrace that the proper procedure would be to rebuild the motor with the flanged liners and all that, but I'm not willing to go that far. I'll drive it until there is a catastrophic motor failure and then decide what to do from there.

So far I've gone around 5 years with the problem and it hasn't gotten better or worse, so I'm willing to invest a day and $40.00 in parts to try this out. Not much more than that though.

I wonder if I could pull the front cross member and engine mounts, and 'lower' the engine enough to do this?

Thanks for all the input!



Sorry, only registered users may post in this forum.