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Old 22-07-2008, 17:55   #1
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wanted alternator for yanmar 1gm

its model is lr135

also it is the one that came on a lot of 2gm. i would take the upgrade to the 55 amp as well as the stock 35 amp one
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Old 23-07-2008, 01:25   #2
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I wouldn’t recommend up sizing the alternator on a single lung engine.

Did you Google " Hitachi LR135 " ?

Yanmar - Click on Dealers & Distributers: Yanmar Marine
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Old 23-07-2008, 02:36   #3
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Replacement

I suggest going to a good automotive alternator shop.
Ask for a "takeoff" replacement.
These are alternators that were taken off new diesels and replaced with
different ones( Larger usually ).
They sell these takeoffs for around $200.
I have used these many times and the work well.
Chuck clcjr54@hotmail.com
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Old 23-07-2008, 05:00   #4
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I have bought take offs from yanmar themselves. You just need to ask. Also KISS, aka Hotwire Enterprises in Tarpon Springs Florida has high output amps for sale

svhotwire@gmail.com
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Old 23-07-2008, 06:21   #5
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An automotive store that specializes in Japanese parts will have all the Hitachi alternators you want.
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Old 23-07-2008, 20:52   #6
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i am trying to be slightly cheap here, have seen them online line for 120 or so. but i was hoping to get out a little cheaper for this season, upgrade over the winter.

i know i need to raid an auto shop but most of em nowadays cant help ya unless you know the car model and year, they all have gone too computerized
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Old 25-07-2008, 07:38   #7
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after mine got a saltwater dunking it died and I nearly died when given the price of a new one!! but a bedford rascal van or the tiny suzuki runabout delivery van has an alternator which with a little adjustment fits fine. and cost £10 ($15 USD) from the scrapyard. I bought 3 just in case and the original is still going strong.

Good luck
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Old 27-07-2008, 00:37   #8
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thanks for the lead
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Old 27-07-2008, 10:10   #9
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I have a brand new one available, which I removed and replaced with a Balmar and regulator on my 3GM30 on installation of the new engine. Send a private message for particulars
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Old 27-07-2008, 13:30   #10
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Roy M,

Unless you have another Balmar save the original Hitachi as a spare. That's what I did and have had to use it a couple of times. I left all the original wiring so it's a 15 minute job to swap back to the original.
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Old 29-07-2008, 21:09   #11
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well i went by the local rebuild shop, they want 100 to rebuild my 35 amp alt, and they will sell me a new 55 amp for 135, no shipping just tax

yes i know my 1gm will not like running the prop and a 55 amp under full load, but to me the yanmar is more on an onboard genny, and also only really used to get away from the slip.

now i just need to find an alt for an atomic 4 reasonably for a customer... this boat electrician/mechanic thing is great i have made 800 bucks in 2 days
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Old 29-07-2008, 22:34   #12
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to late to edit

yes i know not to run on idle, i will take the rpms up to the right rpms for the engine. i will have a 55 amp alt and about 200 amps of battery, so i will need to run the engine for 2 hours once or twice a week
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Old 30-07-2008, 05:07   #13
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My alternator quit on my Yanmar 6 yrs ago. I went to Advance Auto and matched it up with an auto . I had to swap pulleys. It has worked well ever since. Lifetime warranty.
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