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MGB Cylinder Sleeve/Liner

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MGB Cylinder Sleeve/Liner #1
IndyMGA Chad Rice Indianapolis, IN, USA Sign in to contact	Topic Creator (OP) Apr 10, 2024 04:12 PM Joined 4 years ago 51 Posts

Hello,
My 18GB-U-H engine's at the machine shop and due to deep pitting they suggest I order some sleeves. They've asked for the site to order parts from so they/I order the correct size sleeve. On the Moss site there's only one part# 426-080.
They feel the pits are rather deep so they're choosing to sleeve over boring.

1) Is this the correct part #? If so anyone have dimensions?

This was an engine that was sitting for who knows how long but long enough for the pistons to seize.

Cheers,
Chad

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Re: MGB Cylinder Sleeve/Liner #2
dickmoritz Dick Moritz Philly 'burbs, PA, USA Sign in to contact	Apr 10, 2024 07:46 PM Top Contributor Joined 16 years ago 28,128 Posts

Find another machine shop. The customer never supplies sleeves; they are always provided by the machine shop and ordered by specification and measurements, not by application...

Dick

Errabundi Saepe, Semper Certi
(Often wrong, but always certain)

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Re: MGB Cylinder Sleeve/Liner #3
Basil Adams About 12 miles from Sears Point, CA, USA Sign in to contact	Apr 10, 2024 07:56 PM Top Contributor Joined 19 years ago 13,447 Posts

Somebody in Indiana or Illinois will have a good block for cheap that doesn't need sleeves. Put a WTB ad in the Buy, Sell, Trade page of this website and you'll find one for a very reasonable price. Best of luck. Basil 707.762.0974 basiladams@yahoo.com

Basil C. Adams
1956 MGA Coupe (Show Car)
1957 MGA Roadster (Driver)
1958 MGA Coupe (Racecar)
1959 MGA Coupe (unrestored)
1960 MGA Coupe (unrestored)
1960 MGA Roadster (Driver)
MKIII Elva Courier (E1056)
1967 427 Cobra
1972 Alfa Romeo Montreal
A coupla late MGBs
1960 Austin Healy BN7
More Cars than Brains

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Re: MGB Cylinder Sleeve/Liner #4
ClayJ Clay Johnston Mt. Olive, MS, USA Sign in to contact 1972 MG MGB	Apr 10, 2024 09:42 PM Top Contributor Joined 20 years ago 20,188 Posts

Before discarding the block, why not have the shop bore that pot to 0.040" to see if it cleans up, if not try 0.060"; then purchase a piston/ring set to match?

Before ordering pistons for the GB engine get a recommendation on piston/ring/pin setup.

I too have not heard of a machine shop ordering sleeves retail.

At some point in my car's history, two pots were sleeved, has never caused any issues.

Also, a great opportunity to build a 1950cc engine (JUST KIDDING).

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Re: MGB Cylinder Sleeve/Liner #5
Motion Dale Spooner Danville, VA, USA Sign in to contact 1977 MG MGB	Apr 11, 2024 07:21 AM Top Contributor Joined 12 years ago 1,220 Posts

What Dick said. Is this an actual automotive machine shop or a job shop? A automotive machine shop that wants you to supply the sleeves is like a restaurant wanting you to bring the food, very strange. Installing sleeves is an every day task in an automotive machine shop, I've installed literally thousands. Economically it makes no sense to sleeve all four when blocks are available.

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Re: MGB Cylinder Sleeve/Liner #6
Speedracer Hap Waldrop Taylors, SC, USA Sign in to contact 1961 MG MGB "LL" Lady Lynn" 1967 MG MGB Racecar "The Biscuit"	Apr 11, 2024 10:20 AM Top Contributor Joined 20 years ago 46,844 Posts

Your best bet for either for success or cost would be to get another block. Any 5 main MGB block would work. If you were closer I would give you one.

Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com

Acme Speed Shop www.mgexp.com

Select Performance Street Engines, Head Porting, DIY Engine Rebuild Kits with free tech advice, See This Link For Engine Tech, https://www.mgexp.com/forum/vendor-market.68/acme-speed-shop-diy-engine-rebuilding-kits.1828263/ VTO Wheels

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