STD Tuning Engine OM617 turbo CP-Carrillo forged pistons

OM617 turbo CP-Carrillo forged pistons

OM617 turbo CP-Carrillo forged pistons

 
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raysorenson
Superturbo

1,162
09-09-2020, 11:37 AM #1
[Image: 4632-M67TP-N-2T.jpg?v-cache=1587732235]

https://www.dieselmercedes.com/Forged_Pe...67tp-n.htm

Anyone have experience with these? Is it just me or do they look like hemi or pentroof dome pistons with 4 valve reliefs? Definitely a major departure from the stock pistons.
raysorenson
09-09-2020, 11:37 AM #1

[Image: 4632-M67TP-N-2T.jpg?v-cache=1587732235]

https://www.dieselmercedes.com/Forged_Pe...67tp-n.htm

Anyone have experience with these? Is it just me or do they look like hemi or pentroof dome pistons with 4 valve reliefs? Definitely a major departure from the stock pistons.

baldur
Fast

506
09-09-2020, 03:57 PM #2
The pistons pictured do not fit an OM617. They are in fact petrol engine 4 valve pistons, not diesel.

Baldur Gislason

baldur
09-09-2020, 03:57 PM #2

The pistons pictured do not fit an OM617. They are in fact petrol engine 4 valve pistons, not diesel.


Baldur Gislason

raysorenson
Superturbo

1,162
09-10-2020, 12:30 PM #3
The response to my e-mail was yes, stock photo and nobody has used the piston yet.

I asked if it had the double wall below the combustion chamber for enhanced oil cooling that the stock pistons have. I got an "I'll check".
raysorenson
09-10-2020, 12:30 PM #3

The response to my e-mail was yes, stock photo and nobody has used the piston yet.

I asked if it had the double wall below the combustion chamber for enhanced oil cooling that the stock pistons have. I got an "I'll check".

baldur
Fast

506
09-11-2020, 08:30 AM #4
No forged pistons have any such voids in them. It's not possible to manufacture something like that in a forging process.

Baldur Gislason

baldur
09-11-2020, 08:30 AM #4

No forged pistons have any such voids in them. It's not possible to manufacture something like that in a forging process.


Baldur Gislason

NZScott
HX30W 73/44mm

398
09-11-2020, 08:26 PM #5
Solution looking for a problem? Aren't the rods the first thing to go?


1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




NZScott
09-11-2020, 08:26 PM #5

Solution looking for a problem? Aren't the rods the first thing to go?



1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




barrote
Superturbo

1,627
09-15-2020, 05:15 AM #6
Haha... MB start using forged pistons some 50years ago...
They are forged in 2 stages and then friction welded... also rings recess got to be from steel in diesels...
Not saying it wont hold...

FD,
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barrote
09-15-2020, 05:15 AM #6

Haha... MB start using forged pistons some 50years ago...
They are forged in 2 stages and then friction welded... also rings recess got to be from steel in diesels...
Not saying it wont hold...


FD,
Powered by tractor fuel

 
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