Author Topic: 346 OE Piston  (Read 732 times)

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Offline Old Iron Logging

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346 OE Piston
« on: February 26, 2011, 08:48:17 pm »
When did the 45cc 346 switch to a 2 ring piston? Last one I got was made in Germany with 2 rings. Is Stihl making pistons for Husky now?

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Offline Cut4fun

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Re: 346 OE Piston
« Reply #1 on: February 26, 2011, 10:50:17 pm »
I still dont know whats up with that. Spike60 signed up here and he is the husky dealer everyone uses in NY. Maybe he will know.
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Offline Spike60

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Re: 346 OE Piston
« Reply #2 on: February 27, 2011, 08:31:58 am »
I've never seen a 346 with 2 piston rings; either OE or NE. Could it be an aftermarket piston in there?

You just never know what's been done to a saw before you get it. I had a 670 that ran so-so. Just never had much snort to it. Would get toasted by my 630. Rebuilt the carb; no better. Decided to tear it down and have a look. Someone had been in there before and put an aftermarket open port style, non-windowed piston in it. Replaced it with a proper OEM windowed piston and it's a night and day difference.
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Offline Old Iron Logging

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Re: 346 OE Piston
« Reply #3 on: February 27, 2011, 08:39:43 am »
Ordered the piston from Husky dealer. Came in a Husqvarna Group box. Has Mahle stamped inside the piston. Husky symbol stamped in the piston also. Other marks in piston are; 138, 42151, and 8K1. Part # on the box is 544 09 30-02. Other than 2 rings it is identical to the 1 ring pistons I have here.

Offline Old Iron Logging

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Re: 346 OE Piston
« Reply #4 on: February 27, 2011, 07:27:36 pm »
Well the mystery piston is becoming less of a mystery. It seems that 3 counts of major stupidity are involved.

1. Husky Canada for giving a dealership to a hardware store.
2. The hardware store for putting the saws in the plumbing dept.
3. Me for thinking I could get parts from them.

The piston is from a bushsaw or trimmer.

Offline Cut4fun

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Re: 346 OE Piston
« Reply #5 on: February 27, 2011, 07:35:21 pm »
42mm bushsaw or trimmer?
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Offline Old Iron Logging

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Re: 346 OE Piston
« Reply #6 on: February 27, 2011, 07:41:52 pm »
42mm bushsaw or trimmer?

Will know which model soon. Hamish over at as is going to get to the bottom of it. He is a Husky dealer in Ontario. It is 42mm.

Offline Cut4fun .

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Re: 346 OE Piston
« Reply #7 on: February 27, 2011, 08:04:34 pm »
Hamish  is a Husky dealer in Ontario. .

Well tell Hamish to bring that knowledge over here and help us out too. 
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Offline Old Iron Logging

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Re: 346 OE Piston
« Reply #8 on: February 28, 2011, 12:57:18 pm »
The piston is the 2009 upate for the 343 series of trimmers. 42mm, may or may not work in a 346. Measures up good, my only concern would be the lower ring and intake port.

Offline Spike60

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Re: 346 OE Piston
« Reply #9 on: February 28, 2011, 01:02:51 pm »
The hardware store screwed up and should take it back and get you the right piston.
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