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Old 11-11-2013, 19:00   #16
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Re: Does the Yanmar 2GM20 have dry sleeves?

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Originally Posted by Dexterbase View Post
The Toad website store looks like it'll let me check out. I added all the parts to my cart and it's asking for CC information.

I wonder if I'll just get a phone call tomorrow telling me they can't ship to me?
You can only try. I did get a few yanmar parts out of state once years ago. So it can happen.
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Old 11-11-2013, 19:04   #17
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Re: Does the Yanmar 2GM20 have dry sleeves?

I think I'll just call in the morning.
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Old 11-11-2013, 19:55   #18
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Re: Does the Yanmar 2GM20 have dry sleeves?

Theres a large outfit in Sacromento Calif, Called Motor Wearhouse, I believe they are still there!! When I was still in bizz in cali, I bought many many engine parts for marine diesels from them!! all new, everything from pistons, rings, bearings, gaskets, ect for perkins volvo yanmar even gm 71 stuff!! Yall out there should do some ckin, cus they are sure cheaper then dealers!! just a thought
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Old 11-11-2013, 19:57   #19
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Re: Does the Yanmar 2GM20 have dry sleeves?

I am all over that! I will check them out tomorrow.
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Old 12-11-2013, 05:29   #20
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Re: Does the Yanmar 2GM20 have dry sleeves?

Page 1-6 (Principle Construction) of this Yanmar Service Manual states that the 1GM was “sleeveless”, and the 2GM, 3GMD, 3GM, & 3HM were “dry sleeved”.

http://www.dieselpartseurope.com/web...vicemanual.pdf
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Old 12-11-2013, 07:45   #21
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Re: Does the Yanmar 2GM20 have dry sleeves?

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Page 1-6 (Principle Construction) of this Yanmar Service Manual states that the 1GM was “sleeveless”, and the 2GM, 3GMD, 3GM, & 3HM were “dry sleeved”.

http://www.dieselpartseurope.com/web...vicemanual.pdf
The 2GM and 2GM20 are totally different engines from what I understand though.
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Old 12-11-2013, 08:25   #22
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Re: Does the Yanmar 2GM20 have dry sleeves?

Assuming two engines, you may even consider overhauling one at a time. By that I mean a few years apart. That is normal for aircraft as it has a way of spreading costs out so both engines aren't due for overhaul at the same time
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Old 12-11-2013, 09:51   #23
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Re: Does the Yanmar 2GM20 have dry sleeves?

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The 2GM and 2GM20 are totally different engines from what I understand though.
Well not totally different. But the later fresh water cooled 1gm10, 2gm20 and 3gm30 were sleeveless (per the later years shop manual). Think Yanmar did some cost engineering on the later fresh water cooled engines. Though the parts are NOT interchangeable. The older 2gm pistons and cylinders for example were a little smaller then later years.

It does look like the basic block casings were the same, just machined different, so parts were not interchangeable. Thank you Yanmar.
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Old 12-11-2013, 10:10   #24
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Re: Does the Yanmar 2GM20 have dry sleeves?

Per Page 1-4*, the 2GM20 (F/C) has a “Sleeveless” cylinder.
* Service Manual ➥ http://www.nhmr.nl/media/org/4d7ea5e...76389ee424.pdf
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