Mean Green or other HO Alternator - Defender Source
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  #1  
Old June 18th, 2012, 05:41 PM
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Jay S
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Mean Green or other HO Alternator

Looking for a alternator that outputs around 180 amps and would bolt up to a 200tdi stock location?

anyone know of a direct fit?
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  #2  
Old June 19th, 2012, 09:43 AM
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Unless you are running serpentine belt that going to be hard to do. Vbelts wont be able to even turn a alt with that high of an output without slipping

Also you have a disco or defender 200tdi?

The disco version stock location is much easier to find a HO replacement.

Defender motor is much more challenging. Best i found was a new 75 AMP and i had to reuse my old pulley

EDIT

Found the post http://www.defendersource.com/forum/...tdi+alternator check the last few pages
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  #3  
Old June 19th, 2012, 10:14 AM
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There are plenty of V belt high output alternators. Check out http://www.premierpowerwelder.com/specs/ppwspecs.html

I plan on installing one of theirs when I install an on board welder.
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  #4  
Old June 19th, 2012, 10:34 AM
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No way it will work on a Defender 200TDI. The V-belt wrap angle is tiny and there is very little room available. At 100 Amp they have trouble with the belts.
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Old June 19th, 2012, 10:36 AM
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Quote:
Originally Posted by Red90 View Post
No way it will work on a Defender 200TDI. The V-belt wrap angle is tiny and there is very little room available. At 100 Amp they have trouble with the belts.
Even on the Disco 200tdi it sucks. My belt is so short and it leaves very little room for tightening. I'm trying to find a better solution for a high output alt as well.
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  #6  
Old June 19th, 2012, 10:49 AM
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Fit a second alt on the top where Aircon goes, eBay have plenty of units ffor under 60 pounds
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  #7  
Old June 19th, 2012, 03:48 PM
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Quote:
Originally Posted by Gibraltarjim View Post
Fit a second alt on the top where Aircon goes, eBay have plenty of units ffor under 60 pounds
yep there is some guy who sells a kit on ebay.co.uk

but you have a pulley and a open timing case with it
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  #8  
Old June 19th, 2012, 03:55 PM
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A 180 A alternator is gonna be honking huge, at least a true 180 A alternator will. About twice the size of your standard issue Delco or Marelli. For what reason do you need such a monster?
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  #9  
Old June 19th, 2012, 04:05 PM
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Not in the stock location. Advertised on Land Rover Exchange

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Advertisement to SELL; Product: PARTS; Price: 349.99; (Currency: US Dollars);
Defender 200 AMP Alternator Conversion Brackets for 200 TDI
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200 amp alternator kit for 200 TDI Defender. This kit lets you mount the most reliable high output alternator that we know of on the left side of the engine away from the exhaust. Will work with both the Defender or Discovery 200 TDI Turbo locations and repositions the alternator on the opposite side of the engine where it remains undamaged by exhaust heat. Another positive feature is that when the alternator is repositioned on the left side of the engine it opens a pathway for the intercooler plumbing that allows an easy fit for the Discovery 200 TDI in a Defender. Not for use with vehicles with AC. This advertisement is for the mounting plate, adjustment arm, twin groove pulley, mounting hardware, fan belt, and wiring connectors. The alternator is purchased separately, but we supply the vendor purchase information. We used this setup while camping to run a twin battery isolator for a deep cycle battery that is separate from the vehicle battery. The deep cycle battery powers and Engel refrigerator/freezer, 12V lights, and a power inverter. Please send us an email for purchase information. This is a professional kit that is proven to work effectively.
Top of Form

Robert Davis.
Chesapeake, Virginia, United States of America - 2 May 2012

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  #10  
Old June 19th, 2012, 04:19 PM
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$350 with no alternator? Holy crap!!
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  #11  
Old June 19th, 2012, 04:21 PM
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might be easier to just run 2 stock ones
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  #12  
Old June 19th, 2012, 05:03 PM
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I have a defender 200 tdi

Im looking to have 2 batteries so when we camp we can run a fridge - charge up phones etc while camped - I have set up the 2 batteries with an isolator but I dont think my alternator has enough juice to charge them

my mechanic put on the 12088n one mentioned in the other post but he does not feel it is going to be enough to charge both batteries
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  #13  
Old June 19th, 2012, 05:06 PM
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Quote:
Originally Posted by Red90 View Post
$350 with no alternator? Holy crap!!
I thought the same thing!

------ Follow up post added June 19th, 2012 05:07 PM ------

Quote:
Originally Posted by jjstahl3 View Post
I have a defender 200 tdi

Im looking to have 2 batteries so when we camp we can run a fridge - charge up phones etc while camped - I have set up the 2 batteries with an isolator but I dont think my alternator has enough juice to charge them

my mechanic put on the 12088n one mentioned in the other post but he does not feel it is going to be enough to charge both batteries
I run two Optimas with tons of electric crap (winch, fridge, lights, chargers, etc) on the stock alternator. You're fine.

I'm looking for a high output to run a Premier Power Welder.
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  #14  
Old June 19th, 2012, 05:20 PM
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The batteries have nothing to due with how big an alternator you need. It is the load. All you mention is a fridge and charging phones.... That is nothing.
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  #15  
Old June 20th, 2012, 02:43 PM
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I'm only getting around 12-12.6 on either battery ? Which won't charge them correct?
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  #16  
Old June 20th, 2012, 03:23 PM
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Just throwing in a high output alternator without knowing the load on the batteries or the amp draw is senseless.
You have to calculate the total amp hours you need first then buy batteries that will provide the juice. Two 31 AGM batteries in parallel will give you quite a lot of reserve. You could run a small air conditioner on them.
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  #17  
Old June 20th, 2012, 03:46 PM
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The load is nominal I believe - I have a radio, Nav unit and a couple hella lights, a arb fridge and plan to charge a few phones etc - shouldn't the alternator be providing 13-14 volts to the battery to charge them regardless of 1 or 2 batteries?

Im not concerned how long I can run stuff with the engine off I'm only concerned that the alternator is not putting out enough volts to charge the batteries in the first place

what am I missing?
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  #18  
Old June 20th, 2012, 04:33 PM
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You're confusing volts and amps for one. I would say that by the list you need no more than the stock alternator. You may want to go up in size on your battery bank.
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  #19  
Old June 20th, 2012, 04:49 PM
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confused is the correct word - shouldnt the voltage at the battery terminals be 13-14 to charge the batteries?
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  #20  
Old June 20th, 2012, 05:02 PM
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Yes, and the alt must also have the available current (in relationship to the varying load) to be able to charge the batteries.

If not you will be running off the batteries and not charging.

The voltages you showed before are low, i would check/replace ground and power wires with heavier gauge. then possibly buy a larger alt
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