Author Topic: pistons  (Read 1810 times)

w113bkk

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pistons
« on: April 30, 2018, 02:40:33 »
I am rebuilding my 230sl engine. Other than the classic center where can I find pistons for my car? I am most likely using 1st over pistons. I also need to find the diameter of the piston to give to the machinist. Does anyone also have recommendations on a good place for an oil pump and cam gear?

Thanks!

Jowe

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Johan
04/1964 230SL, European, manual 4-sp, power steering, 050/050 white, black leather, Blaupunkt (SOLD)

Benz Dr.

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Re: pistons
« Reply #2 on: April 30, 2018, 15:00:43 »
Would need to know how many rings are on your pistons, the width of those rings, casting number on your connecting rods, and piston pin diameter. There are 3 different pistons used on 230SL engines. I have a set on 3rd version pistons in stock. 3 ring 25mm pin.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

George Des

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Re: pistons
« Reply #3 on: April 30, 2018, 16:27:41 »
I would not have the machinist do any work on the block until he has the pistons in hand regardless or whether you know the size beforehand. All sizes are plus or minus a certain amount from the given sizes--engineering tolerances. The cylinders need to be bored precisely to the diameter of the piston plus the required side clearance. This is best done when the actual pistons that will be fitted are in hand and can be individually fitted with the proper clearances.

Benz Dr.

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Re: pistons
« Reply #4 on: April 30, 2018, 16:36:01 »
I agree.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC