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modok
Samba Member
Joined: October 30, 2009
Posts: 26778
Location: Colorado Springs
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 Posted: Wed Apr 21, 2021 8:32 pm Post subject: Re: The DUMBEST things you've found done to engines |
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I've got a contender
Perkins engine block here, has a piece of angle iron welded in the cylinder for the purpose of removing the cylinder sleeve.
Here is the problem
Only certain versions of this engine have removable cylinder sleeves,
and this isn't one of them! |
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Chickensoup
Samba Member
Joined: January 06, 2018
Posts: 5368
Location: Good Hope, GA
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| Posted: Thu Apr 22, 2021 4:51 am Post subject: Re: The DUMBEST things you've found done to engines |
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| modok wrote: |
I've got a contender
Perkins engine block here, has a piece of angle iron welded in the cylinder for the purpose of removing the cylinder sleeve.
Here is the problem
Only certain versions of this engine have removable cylinder sleeves,
and this isn't one of them! |
 dang. What if you bored the bores even larger, and then slipped in a new sleeve?
I've never seen one installed on a typical v8 but aren't they just press fits?
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Hosea 4:6 "My people are destroyed for lack of knowledge" |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Sun Apr 25, 2021 10:42 am Post subject: Re: The DUMBEST things you've found done to engines |
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some are press fits some arnt...Ive installed tomany. , but for some of the stupidest things ever have to be the morons that put them into production  or the other morons that take a 250 hp 16 valve dohc 2.4l performance na engine and make it so it only puts out....160~170 hp at the flywheel!!! you cant fix stupid. now if it said honda on the valve cover it would probably be 260 hp...but it dont.you cant fix stupid. I think hondas s 2000 NA 4 cyl engine at 2000 cc is around 240 hp....like it should be, |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26778
Location: Colorado Springs
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| Posted: Tue Apr 27, 2021 11:11 pm Post subject: Re: The DUMBEST things you've found done to engines |
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| Chickensoup wrote: |
| modok wrote: |
I've got a contender
Perkins engine block here, has a piece of angle iron welded in the cylinder for the purpose of removing the cylinder sleeve.
Here is the problem
Only certain versions of this engine have removable cylinder sleeves,
and this isn't one of them! |
dang. What if you bored the bores even larger, and then slipped in a new sleeve?
I've never seen one installed on a typical v8 but aren't they just press fits? |
Good guess, that's exactly the plan. I've put in many hundreds of sleeves, just did three today. you can use a heavy press fit, but usually it is better to use a light press fit and a step at the bottom below the sleeve so it can't drop.
But boring through the weld zone will be.......not fun. I am suspect the welding has created super hard zones around the weld.
Excited to start fixing it soon as they put down a deposit.  |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Wed Apr 28, 2021 7:38 am Post subject: Re: The DUMBEST things you've found done to engines |
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| yes it will have some hard zones, I wood use a die grinder and take out almost the thickness of the sleeve you intend to put back in. or it's just going to kill/dull the cutter and..creat a lot of heat as it trys to knurl it's way through.... |
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