Can't keep it running
Hotshot
Joined: Dec 2014
Posts: 17,834
Likes: 3,122
From: Jersey Shore
If you check the alternator output before the glow plugs turn off, the voltage will be low due to the demand. You have to wait 2 minutes after a restart unless the engine is fully hot. Cold, the alternator should supply 14+ volts, diminish to 13.8 when hot.
Any alternator output over 180a will require a supplemental cable to the battery in parallel with the stock cable.
Any alternator output over 180a will require a supplemental cable to the battery in parallel with the stock cable.
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Mountain Pass
Joined: Nov 2016
Posts: 195
Likes: 2
From: AK
Was looking at the mean green 200amp alternator, or the XDP high output 230amp from blessedperformance. So you're saying with either of these I would need a wiring upgrade? If so I'm just going to go with the 140amp.
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Mountain Pass
Joined: Nov 2016
Posts: 195
Likes: 2
From: AK
Can anyone give me a link or part number for the 140amp alternator? Car quest guy can only find 130 or 135 amp ones but they're the 'lower' one for a dual setup.
Hotshot
Joined: Dec 2014
Posts: 17,834
Likes: 3,122
From: Jersey Shore
Target the 2007 model year, single alternator, optional top 135/140a. The 135 and 140 are the same in actuality. The electrical connections will be clocked to the side, the harness changed with later models.
The ideal for a 140a is to use a smaller diameter pulley to slightly overclock the alternator and get more amps at the lower, idle RPMs. Or when cold let it idle for 2 minutes before doing or tuning on anything else.
The ideal for a 140a is to use a smaller diameter pulley to slightly overclock the alternator and get more amps at the lower, idle RPMs. Or when cold let it idle for 2 minutes before doing or tuning on anything else.
Thread Starter
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Mountain Pass
Joined: Nov 2016
Posts: 195
Likes: 2
From: AK
Target the 2007 model year, single alternator, optional top 135/140a. The 135 and 140 are the same in actuality. The electrical connections will be clocked to the side, the harness changed with later models.
The ideal for a 140a is to use a smaller diameter pulley to slightly overclock the alternator and get more amps at the lower, idle RPMs. Or when cold let it idle for 2 minutes before doing or tuning on anything else.
The ideal for a 140a is to use a smaller diameter pulley to slightly overclock the alternator and get more amps at the lower, idle RPMs. Or when cold let it idle for 2 minutes before doing or tuning on anything else.
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Hotshot
Joined: Dec 2014
Posts: 17,834
Likes: 3,122
From: Jersey Shore
Most alternators come with the stock diameter.
If you install your and desire a little move voltage at first startup, Amazon or eBay have the overdrive pulleys.
This 58mm would be one.
https://www.ebay.com/itm/Ford-3G-6G-...e/191609911806
If you install your and desire a little move voltage at first startup, Amazon or eBay have the overdrive pulleys.
This 58mm would be one.
https://www.ebay.com/itm/Ford-3G-6G-...e/191609911806
Lead Driver
Joined: Jul 2004
Posts: 6,951
Likes: 512
From: Foothills, CA
Most alternators come with the stock diameter.
If you install your and desire a little move voltage at first startup, Amazon or eBay have the overdrive pulleys.
This 58mm would be one.
https://www.ebay.com/itm/Ford-3G-6G-...e/191609911806
If you install your and desire a little move voltage at first startup, Amazon or eBay have the overdrive pulleys.
This 58mm would be one.
https://www.ebay.com/itm/Ford-3G-6G-...e/191609911806
Thread Starter
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Mountain Pass
Joined: Nov 2016
Posts: 195
Likes: 2
From: AK
Hotshot
Joined: Dec 2014
Posts: 17,834
Likes: 3,122
From: Jersey Shore
I have it; I've tested it on YouTube. A direct fit on the 2003 6.0.
For me, it's been a good alternator. With the newer production, some here have had warranty issues - Bosch will only warranty it if used on a different truck, I believe in the 450 or 550 range or something else with a 6.0; Amazon says it will fit, and they are right. Amazon is terrible at dealing with a warranty and won't support you. I believe it's also available at Advance Auto. At the time I think I paid about $150 for it on Amazon.
For me, it's been a good alternator. With the newer production, some here have had warranty issues - Bosch will only warranty it if used on a different truck, I believe in the 450 or 550 range or something else with a 6.0; Amazon says it will fit, and they are right. Amazon is terrible at dealing with a warranty and won't support you. I believe it's also available at Advance Auto. At the time I think I paid about $150 for it on Amazon.
Hotshot
Joined: Dec 2014
Posts: 17,834
Likes: 3,122
From: Jersey Shore
Thanks, Scott. No need, I just posted before someone else.
Thread Starter
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Mountain Pass
Joined: Nov 2016
Posts: 195
Likes: 2
From: AK
I have it; I've tested it on YouTube. A direct fit on the 2003 6.0.
For me, it's been a good alternator. With the newer production, some here have had warranty issues - Bosch will only warranty it if used on a different truck, I believe in the 450 or 550 range or something else with a 6.0; Amazon says it will fit, and they are right. Amazon is terrible at dealing with a warranty and won't support you. I believe it's also available at Advance Auto. At the time I think I paid about $150 for it on Amazon.
For me, it's been a good alternator. With the newer production, some here have had warranty issues - Bosch will only warranty it if used on a different truck, I believe in the 450 or 550 range or something else with a 6.0; Amazon says it will fit, and they are right. Amazon is terrible at dealing with a warranty and won't support you. I believe it's also available at Advance Auto. At the time I think I paid about $150 for it on Amazon.
