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Author Topic: Next! 16/2 Lister  (Read 495 times)

cobbadog

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Re: Next! 16/2 Lister
« Reply #15 on: November 17, 2022, 04:54:26 AM »
It certainly sounds like a challenge.
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ajaffa1

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Re: Next! 16/2 Lister
« Reply #16 on: November 17, 2022, 06:46:39 AM »
I suspect there was wear in the bearings of the boring machine used, the deeper the bore the more pronounced the deviation would become, I really hope they didn`t use the same machine to do the bores for the new liners. The finish on the bores is terrible suggesting the machine was in poor condition.

Bob

cobbadog

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Re: Next! 16/2 Lister
« Reply #17 on: November 17, 2022, 09:59:50 AM »
Or a back yard job by a beginner
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38ac

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Re: Next! 16/2 Lister
« Reply #18 on: November 17, 2022, 02:51:59 PM »
Exactly Bob, plus the further one extends the bar the more it flexes. Thats why you don't bore by advancing the bar. You extend tbe bar out far enough to preform the job, lock it and advance the work to it.

Yesterday was cleaning day. Luckily I have a hot  power wash cabinet thus its not as tedious as it once was. Piles of cleaned parts and a clean crankcase.
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38ac

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Re: Next! 16/2 Lister
« Reply #19 on: November 17, 2022, 03:00:31 PM »
More problems, Grrrr
Sorry about poor picture but anyone see a problem with this sleeve installation. Boring these out for .5mm oversize pistins just went out the window.
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38ac

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Re: Next! 16/2 Lister
« Reply #20 on: November 17, 2022, 03:18:02 PM »
Finally some good news on this engine, hard seats were installed earlier in life. Just have to recut the seats with a 3 angle job, clean up the surfaces and set them aside. One down, one to go.

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BruceM

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Re: Next! 16/2 Lister
« Reply #21 on: November 17, 2022, 03:30:44 PM »
Is that a gap line showing between liner and cylinder or just shadow from liner not flat and flush? 

Can you use Rajkot parts for a replacement cylinder?

Glad you got a bonus on the valve seats!

32 coupe

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Re: Next! 16/2 Lister
« Reply #22 on: November 17, 2022, 04:55:05 PM »
Nothing wrong with that sleeve.
Just run a big weld bead around it and knock it down with a hand die
grinder and you are go to go !

(Just kidding of course !)
« Last Edit: November 17, 2022, 04:57:07 PM by 32 coupe »
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38ac

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Re: Next! 16/2 Lister
« Reply #23 on: November 17, 2022, 06:27:11 PM »
The sleeve was either installed low or has sunk with pressure from the head gasket. Hard to say for sure which but it won't hold a head gasket very long thats for certain. Who ever butchered this engine didn't leave a step in the bottom of the cylinder to stop the sleeve,, but on the other one he did.
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listard-jp2

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Re: Next! 16/2 Lister
« Reply #24 on: November 17, 2022, 06:32:13 PM »
If the cylinder liners are tight in the block then why not skim the tops off the cylinder block to correct the problem, then either:

Use more bumping clearance shims to compensate for the material removed, or

Remove a corresponding amount from the tops of the pistons.

If your still interested I have some BACo (British Alumium Company) pistons available in +020 and +060 oversizes that I would be prepared to sell.

ajaffa1

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Re: Next! 16/2 Lister
« Reply #25 on: November 17, 2022, 08:51:04 PM »
Hi Butch, That liner job is going to have to be redone, it could drop into the sump causing god knows how much damage. If those are 1/8" liners then at 5/32" you are only going to have about 30 thou to bore out. That would allow for a 15 thou shoulder near the bottom to stop the liner dropping. You are probably going to have to turn a corresponding shoulder on the bottom of the liner, so the last 1/4" is 1/8" wall thickness. Failing that, some Indian Listeroids have wet liners, you might be able to use one of them.

Finally a bit of good news with the valve seats, strange how some of the work done to this Lister is top quality and some so poor. Time to blame the apprentice?

Bob

38ac

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Re: Next! 16/2 Lister
« Reply #26 on: November 22, 2022, 02:16:28 PM »
Out with the garbage so corrections can begin. Welded a few beads in the sleeves to shrink them and knocked them out with a bar.
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ajaffa1

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Re: Next! 16/2 Lister
« Reply #27 on: November 22, 2022, 07:54:02 PM »
Well done getting that out, I`ve shrunk a lot of seized bearing that way, never tried it with a cylinder liner. Good to know it works.
What does the machining work on the cylinder block look like, have they left you enough meat to work with?

Bob

38ac

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Re: Next! 16/2 Lister
« Reply #28 on: November 24, 2022, 04:09:48 PM »
Going back together while waiting on sleeves. Anyone who has messed with twins knows its real easy to ding the crank shaft journals when wiggling it back in the block. Whoever was in this engine before must have stood back a threw it in! Major dings had to be addressed.
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cobbadog

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Re: Next! 16/2 Lister
« Reply #29 on: November 25, 2022, 04:52:23 AM »
There are some 'butchers' about the place, sounds like you found the winner of them all.
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