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Camshaft bearing replacement
- Thread starter schutnik
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I think it's a long in-line ream they're referring to. The bearings need to be align-bored after they're pressed into the block. The best thing to do is pass the job to a ~good~ machine shop, cam and all. That way they can clearance the bearings properly.
I know that is NOT the answer you were hoping for, but it's the answer for a proper cam fit.
I know that is NOT the answer you were hoping for, but it's the answer for a proper cam fit.
Stewart
Darth Vader
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If your talking about the tool to seat the bearings you can make one with some long threaded rod from home depot the correct nuts to fit the rod and washers to fit both the bearings and outside of the block so you can pull the bearings into place. The 2 outer bearings are pretty easy but the middle one is a pain in the butt. It may be cheaper to have a machine shop put them in especially if you have a bearing fold while trying to seat it.
Hap Waldrop
Yoda
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[ QUOTE ]
I think it's a long in-line ream they're referring to. The bearings need to be align-bored after they're pressed into the block.
[/ QUOTE ]
Not quite correct. First off you need the correct installation tool, like the tool set Lisle make. Sometimes but not always a cam may fit tight into new bearings and when they do I have a hone that help me get them opened up slightly to make them fit, but in most cases they fit with out any additional work. And by no means would you ever line bore bearings. Line boring is a cutting operation that is preformed to the block for the bearing sit on, never a operation done to the bearing itself. In some rare cases cam bores that come form the factory without cam bearing would be line bore to accept cam bearing as a upgrade mod, like in the case of a MG 948 engine. I hope I don't make you mad by posting this, I just feel giving folks the correct info on a public forum to be very important. I want everyone to know this is not spcualtion on my part, as I r&r all my cam bearing in my own shop
I think it's a long in-line ream they're referring to. The bearings need to be align-bored after they're pressed into the block.
[/ QUOTE ]
Not quite correct. First off you need the correct installation tool, like the tool set Lisle make. Sometimes but not always a cam may fit tight into new bearings and when they do I have a hone that help me get them opened up slightly to make them fit, but in most cases they fit with out any additional work. And by no means would you ever line bore bearings. Line boring is a cutting operation that is preformed to the block for the bearing sit on, never a operation done to the bearing itself. In some rare cases cam bores that come form the factory without cam bearing would be line bore to accept cam bearing as a upgrade mod, like in the case of a MG 948 engine. I hope I don't make you mad by posting this, I just feel giving folks the correct info on a public forum to be very important. I want everyone to know this is not spcualtion on my part, as I r&r all my cam bearing in my own shop
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Not at all upset Hap! I wasn't trying to misinform, and babbeting is too soft for "boring" I know. "Sizing" may have been a better choice of terms... I've fitted 'em as well, even with the correct tool /ubbthreads/images/graemlins/wink.gif and they seem to always need to be honed for proper fit. I was trying to point out that this is one job better "farmed out" to a shop than trying to do it in a hobby garage for the first time. I'll watch my phrasing more closely from now on. Keep me honest! /ubbthreads/images/graemlins/grin.gif
Hap Waldrop
Yoda
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Yep Doc, my point too, not a job for first timers without the right tools. unless learning is more important than doing it only one time /ubbthreads/images/graemlins/smile.gif
burgundyben
Jedi Hopeful
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I was just trying to fit some new cam bearings, I mashed up the small rear one....
looking here: -
https://www.mgaguru.com/mgtech/tools/ts206.htm
I see a set of bushes that can be made up to fit them...
Unless anyone in the UK reads this and wants to post a set for me to borrow?
looking here: -
https://www.mgaguru.com/mgtech/tools/ts206.htm
I see a set of bushes that can be made up to fit them...
Unless anyone in the UK reads this and wants to post a set for me to borrow?
burgundyben
Jedi Hopeful
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Thanks, I guess I'll end up making a set, there's a lather at work, I reckon delrin would be tough enough.