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Search: Posts Made By: wsconner
Forum: Diesel   04-14-2014
Replies: 6
Views: 773
Posted By wsconner
Re: 3GM30F exhaust specs

ok, thanks again. helpful info. Probably leaning this way since my C&C 34 is going to be slightly overpowered with the 3GM30 anyway.. and I'd need a robot to get to the exhaust thru-hull...
Forum: Diesel   04-13-2014
Replies: 6
Views: 773
Posted By wsconner
Re: 3GM30F exhaust specs

Thx for reply. So you basically have (assume) 2" exhaust to a 2" wet muffler then coupled down to 1.5" out the wet muffler to the thru hull hose?
Forum: Diesel   04-13-2014
Replies: 6
Views: 773
Posted By wsconner
3GM30F exhaust specs

I'm in the process of swapping out and old 2QM20H (still running strong--just had the chance to acquire an GM) with a 3GM30F. The 3GM has 2" exhaust which I assume is OEM specs (none of the manuals...
Forum: Diesel   04-06-2014
Replies: 4
Views: 910
Posted By wsconner
yanmar 2QM20 to 3GM30F repower

Hello - I have a '79 C&C 34 with a trusty 2QM20 and have the opportunity to "upgrade" to a well maintained and conditioned 3GM30F. Primary interest is the 30 is freshwater cooled, smaller, lighter...
Forum: Electronics   07-14-2012
Replies: 2
Views: 2,373
Posted By wsconner
datamarine wiring or manuals

I am trying to eek out the last years of my datamarine gauge set up, and recently replaced the knotmeter display with the "newer" CS100 model (speed, avg speed, trip and temp). I also had to upgrade...
Forum: Diesel   05-21-2011
Replies: 0
Views: 1,129
Posted By wsconner
2QM20 Parts

Wondering if anyone has any old, used 2QM20 parts they would like to sell. I am looking for an exhaust manifold. Thanks.
Forum: General Discussion (sailing related)   09-11-2010
Replies: 5
Views: 716
Posted By wsconner
think i solved it..

The best things about diesels is that even the seemingly most complex issues always prove themselves out to be a basic malfunction of the operating principles. After many iterations of...
Forum: General Discussion (sailing related)   08-28-2010
Replies: 4
Views: 916
Posted By wsconner
sailed out of the piscataqua and little harbor...

sailed out of the piscataqua and little harbor for 20 years. you'll be fine at the last two hrs on either side of the tide--stay away from the middle third, it will either flush you down the river...
Forum: Diesel   08-26-2010
Replies: 2
Views: 1,358
Posted By wsconner
repower 2QM20 with 3YM30

Has anyone repowered a C&C 34 with the old yanmar 2QM20 to a new 33YM30. particularly interested in the engine bed fitting, or retrofitting and shaft alignment. Thanks.
Forum: General Discussion (sailing related)   08-25-2010
Replies: 5
Views: 716
Posted By wsconner
Thx. Appreciate the new ideas and will check it...

Thx. Appreciate the new ideas and will check it out once this nor eastah winds down here in nh
Forum: General Discussion (sailing related)   08-25-2010
Replies: 5
Views: 716
Posted By wsconner
rpms quiz

Looking for more theories on the symptoms in my 2QM20 (79' C&C 34). I occasionally have a dip in rpm's or throttle when under way. It never gets worse once the symptoms have occurred and I have...
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