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Sleeves sitting up!

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Peter Rumble

02-10-2002 23:24:29

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I have just taken the sleeves out of my B to replace the o rings (which seem small after the ones that were in there) and after cleaning out all the crap (52 years worth) and scraping off the rust and replacing one sleeve and piston from another B parts engine I have found that they sit up at over 10 thou...havent measured properly but the parts block that we took the other ones out of had them sitting lower...all four are the same height and I am wondering if the head has been planed and if this makes a difference...(will water be forced through...will the head gasket not sit properly...will I cause permanent damage) they wont go any lower and when we turned one sleeve upside down and sat it in the sleeve opening we found that it was higher anyway which indicates that something has been done at some stage..didnt notice when we took them out...what should we do...and is replacing the block an option?
I am only new to restoration guys and me and my dad are having a go...and we really appreciate the help we get online

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02-13-2002 17:12:49

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 Re: Sleeves sitting up! in reply to Peter Rumble, 02-10-2002 23:24:29  
If the same sleeves are going back in, then they must have been at that height initially. Having cleaned and scraped everything clean would have lowered things if anything. Don't know what the spec on this engine is, but if need be, the counterbores in the block can be cut deeper to correct this problem. Likewise, if they are not high enough, shims are available to raise the sleeves.

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Butch (OH)

02-11-2002 14:30:28

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 Re: Sleeves sitting up! in reply to Peter Rumble, 02-10-2002 23:24:29  
I too noticed that the TISCO o-rings are a little smaller diameter, but I have several engines running with them installed and no prolems so far. Over the years, I have fixed several leakers for people, most of them were do to rusty, dirty bores in the block. One was due to twisted o-rings.You seem to have to cleaning part well in hand, after you install the o-rings and have the lube applied, insert a pick under the o-rings and take it around the sleeve several times. That will take any twist out of them. Like Dick said, I don't believe that 010 stick out will cause problems. I just did a B with .008 and it sealed up fine. Good luck

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02-11-2002 12:14:48

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 Re: Sleeves sitting up! in reply to Peter Rumble, 02-10-2002 23:24:29  
When I rebuilt my B I threw away the o-rings from tisco and bought the right ones from Allis. Probably should have got it all from Allis but the price was so much more. No other problems so far.

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Dick L

02-11-2002 07:57:29

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 Re: Sleeves sitting up! in reply to Peter Rumble, 02-10-2002 23:24:29  
This will not be a problem. Your head gasket is thicker than .010 and you will still have clearance between the top of the piston and the head. I have the pistons on my pulling engines going more than .010 above the block, but don't tell any one.

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02-10-2002 23:44:20

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 Re: Sleeves sitting up! in reply to Peter Rumble, 02-10-2002 23:24:29  
that should read block has been planed...not the head...cus it is not even on at the mo.!
thanks guys

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02-11-2002 21:16:20

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 Re: Re: Sleeves sitting up! in reply to peter, 02-10-2002 23:44:20  
Before you drop the sleeves in, put a good heavy coat of Aviation gasket sealer all around the "O"ring area... Coat the web between the sleeves, too... Then you will NOT have any problems with leaks--Even if the block cracks a web ( between the sleeves)... "Old Timers" used to say to use paint from the bottom of the can--the Thick stuff...enough to cover the bottom of the water jacket... I know that "AC" blocks can get a crack in the bottom web..ya might as well "be sure"....!!!!

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