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I have an engine that has been described as a low use, fairly .....

June 12 2017 at 12:27 PM
ford-boy  (Login ford-boy)
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new rebuild. Would it be OK to pull rod/main caps and check clearance with Plastigage? ORRRR, would that not be recommended? And if not, why would that not be a good idea? The engine will be used hard, that's why I want to check clearances and crank end play.

 
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Bob
(Login machoneman)
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Sure, you could.....

June 12 2017, 12:38 PM 

but I'd pay more attention to things like timing chain tension, valve seals, recording cylinder pressure (cold, then later hot) and maybe a leak-down test before installing same.

Oh, if it's a Jasper Engines rebuild....just take it over to the nearest scrap yard and sell it as everything inside is already pure junk!

 
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Jeff
(Login sixspd)
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Timing chain tension

June 12 2017, 5:37 PM 

How do you adjust the timing chain tension? I have a block that's about to be rebuilt, and it will require a line-bore - is this likely to affect the crank/cam centre-centre measurement and (as I guess it will) is that going to require some attention to the chain tension?

Is there a shorter chain/larger pulley setup available?

 
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Bob
(Login machoneman)
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Yes, chain and sprocket sets...

June 13 2017, 8:14 AM 



    
This message has been edited by machoneman on Jun 13, 2017 8:15 AM


 
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eric
(Login wwyin62)
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What I did

June 12 2017, 12:50 PM 

in a similar situation was to test run the engine on a stand & listen to it. I thought about pulling the pan & look at a main & rod, but really if you are going to do that you may as well pull them all to have a look & maybe a fresh oil pump. I would do a compression check also.

 
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Mike U.
(Login mtrain)
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Are you looking to buy the engine or already have it sitting on the shelf? nm

June 12 2017, 2:58 PM 


 
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ford-boy
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Already have the engine and it's not a Jasper unit. nm

June 12 2017, 3:48 PM 


 
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