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Badly Scored Cylinder
#1
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Hi there, 

I was wondering if anyone might be able to tell me whether my block is scrap...

I've took the valve chest cover off to see what the clearances were, they varied from 0-10 thou. 

I took off the head to see if the valve seats were burned and they appears to be ok, coked a little but not blue. 

I then noticed that the no.4 cylinder is very deeply scored from top to bottom, both front and back of the cylinder respectively, where the gudgeon pin is. 

I know nothing about the internals of this engine other than the pistons say 58.00 and measure 2.280 inches (+80). 

Are these Renault 4 pistons? If they are does that mean I've got a 1.5" crank and Renault rods too?

I don't think that I can put this engine back together knowing about these score marks. It was running very under powered and producing a lot of smoke. 

Do I need a new block or could I get away with a liner? Photo attached.

Any advice would be greatly appreciated  Smile

Thanks!


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Messages In This Thread
Badly Scored Cylinder - by Wills - 07-04-2018, 04:19 PM
RE: Badly Scored Cylinder - by Zetomagneto - 07-04-2018, 04:38 PM
RE: Badly Scored Cylinder - by Alan - 07-04-2018, 04:44 PM
RE: Badly Scored Cylinder - by Wills - 07-04-2018, 07:00 PM
RE: Badly Scored Cylinder - by Jeff Taylor - 07-04-2018, 07:32 PM
RE: Badly Scored Cylinder - by Wills - 07-04-2018, 09:17 PM
RE: Badly Scored Cylinder - by Alan - 07-04-2018, 09:39 PM
RE: Badly Scored Cylinder - by Colin Reed - 07-04-2018, 09:42 PM
RE: Badly Scored Cylinder - by Nick Turley - 09-04-2018, 01:54 PM
RE: Badly Scored Cylinder - by Austin in the Shed - 09-04-2018, 05:39 PM
RE: Badly Scored Cylinder - by stuartu - 09-04-2018, 08:32 PM
RE: Badly Scored Cylinder - by Wills - 09-04-2018, 09:31 PM
RE: Badly Scored Cylinder - by Austin in the Shed - 10-04-2018, 02:23 AM
RE: Badly Scored Cylinder - by stuartu - 10-04-2018, 09:12 AM
RE: Badly Scored Cylinder - by Wills - 10-04-2018, 09:42 AM
RE: Badly Scored Cylinder - by Ruairidh Dunford - 10-04-2018, 09:46 AM
RE: Badly Scored Cylinder - by Colin Reed - 10-04-2018, 10:08 PM

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