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VW: it aint just a car, its a way of life There are few things more satisfying in life than finding a solution to a problem and implementing it
My Blog: tinkererstales.blogspot.com.au
Made my PTFE (Teflon) gudgeon buttons this evening. They came up quite good. I made them in matching sets for each individual gudgeon because they aren't all identical lengths, it probably wouldn't have mattered but it didn't cost me anything to get the exact length i wanted.
I've given them .5mm float in the bore and the radius is smaller than the rad of the piston so that there will be only single point contact in the centre. PTFE is very dimensionally stable above 23 degrees so there should be no trouble with thermal growth.
On to pics so you can so what i'm ranting about..
Here's a piston assembled with the pin and the buttons in..
And here's what the buttons look like.. Sorry, the pic is a little blurry.
That awesome news bro, just an idea, you probably have allready checked your oil galleries but have a good look at the piston cooler jet from no 1 cyl for any damage or blockage. though it is probably a case of someone running poor oil and flogging it to score your crankshaft...
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Mk2 GTI 2 door 1.9l 8v turbo 1st mk2 1st engineered water vw nats 09
Mk1 twin eng twin turb
scirocco gti 2.1l 16v turb 6spd
Audi A4 B5 1.8t
Originally posted by twin eng, twin turbsView Post
That awesome news bro, just an idea, you probably have allready checked your oil galleries but have a good look at the piston cooler jet from no 1 cyl for any damage or blockage. though it is probably a case of someone running poor oil and flogging it to score your crankshaft...
Yeah i've taken the plugs out of that gallery and removed the piston coolers, there's signs on all journals of wear due to lack of lubrication. But only one journal picked up.
Lucky i wasn't going to run it like it was huh, LOON.
i always look forward to progress on this car, that engines a killer mate
VW: it aint just a car, its a way of life There are few things more satisfying in life than finding a solution to a problem and implementing it
My Blog: tinkererstales.blogspot.com.au
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