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Old 10-22-2013, 12:13 PM
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Stretch Stretch is offline a shield of steel
Join Date: Sep 2009
Location: Somewhere in the Netherlands
Posts: 14,461
Originally Posted by vstech View Post
are all the wristpins the same weight?

I'd certainly grind off the bumps, and thin out the skirts and any flash inside the heaviest ones...
Sorry I forgot about that bit...


Wrist pins are all the same weight at 108 grams.

I can't see 10 - 20 grams of weight difference in the rings which are still fitted. I don't want to remove them 'cos knowing my luck one or more will break and then I can't send them back.

I could indeed remove the obvious bumps but the inside of all of the pistons have been nicely finished - there isn't anything obvious to remove. The knobbly bit in the pictures on page one that was discussed previously has a weight about 2 grams (I know that from arsing about with my older M102.910 pistons).

{Please don't make me explain why I've bought new pistons!}
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior

Don't leave that there - I'll take it to bits!
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