Can I use the Dynamo, or should I put on an alternator - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Race.it · 03-08-2015, 06:38 PM

At present my truck has a dynamo, when it gets a v8 it will have an alternator, is there any benefit in fitting the alternator now with the i6, and if I do this can I reuse the alternator that I will be buying?

Also I have seen guides in the Internet to fit the alternator to the i6 but not located one for sale yet, anybody know what I should be looking for or a pet number?

It's a 235 engine from what I can tell. If that makes a difference.

solidaxel · 03-08-2015, 07:44 PM

Is the truck 12VDC now ?

Race.it · 03-09-2015, 03:05 AM

Battery is 12v just replacing the wiring at present.

**mr48chev** · 03-09-2015, 10:48 AM

I think the main thing is to only spend the money once.

If the dynamo (generator) is 6 volt or 12 volt and not charging or the regulator isn't working go with the alternator now.

All things considered it might be easier to just wire the alternator into the system now so it is all set up and wired in with the new wiring. That would be one less thing to contend with when you do swap engines.

Most of us run a Delco 7157 frame alternator which is an internal regulator alternator that fits cars and trucks from 1973 to about 1983. Those can be set up on a six cylinder pretty easily and are standard on most 350 engines.

Race.it · 03-09-2015, 06:27 PM

thanks, don't know if dynamo is charging, looks like somebody did a rush job to convert from positive earth to negative, and the wiring is not the best, so replacing that, as i can use the same alternator, getting a $50 adaptor to put it on the 6 cyl is good for me, as i can reuse later

OrrieG · 03-09-2015, 08:22 PM

Mr48 I have heard them referred to as the 10SI? Comes in a variety of amperage depending on what equipment you are running. 63 is pretty common.

http://bob_skelly.home.comcast.net/~...ternator1.html

03-08-2015, 06:38 PM	#1
Race.it Registered User Join Date: Aug 2014 Location: Spain, Algeciras Posts: 71	Can I use the Dynamo, or should I put on an alternator At present my truck has a dynamo, when it gets a v8 it will have an alternator, is there any benefit in fitting the alternator now with the i6, and if I do this can I reuse the alternator that I will be buying? Also I have seen guides in the Internet to fit the alternator to the i6 but not located one for sale yet, anybody know what I should be looking for or a pet number? It's a 235 engine from what I can tell. If that makes a difference. __________________ 1954 Chevy 3100 currently original.

03-08-2015, 07:44 PM	#2
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: Can I use the Dynamo, or should I put on an alternator Is the truck 12VDC now ? __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

03-09-2015, 03:05 AM	#3
Race.it Registered User Join Date: Aug 2014 Location: Spain, Algeciras Posts: 71	Re: Can I use the Dynamo, or should I put on an alternator Battery is 12v just replacing the wiring at present. __________________ 1954 Chevy 3100 currently original.

03-09-2015, 10:48 AM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,611	Re: Can I use the Dynamo, or should I put on an alternator I think the main thing is to only spend the money once. If the dynamo (generator) is 6 volt or 12 volt and not charging or the regulator isn't working go with the alternator now. All things considered it might be easier to just wire the alternator into the system now so it is all set up and wired in with the new wiring. That would be one less thing to contend with when you do swap engines. Most of us run a Delco 7157 frame alternator which is an internal regulator alternator that fits cars and trucks from 1973 to about 1983. Those can be set up on a six cylinder pretty easily and are standard on most 350 engines. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

03-09-2015, 06:27 PM	#5
Race.it Registered User Join Date: Aug 2014 Location: Spain, Algeciras Posts: 71	Re: Can I use the Dynamo, or should I put on an alternator thanks, don't know if dynamo is charging, looks like somebody did a rush job to convert from positive earth to negative, and the wiring is not the best, so replacing that, as i can use the same alternator, getting a $50 adaptor to put it on the 6 cyl is good for me, as i can reuse later __________________ 1954 Chevy 3100 currently original.

03-09-2015, 08:22 PM	#6
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: Can I use the Dynamo, or should I put on an alternator Mr48 I have heard them referred to as the 10SI? Comes in a variety of amperage depending on what equipment you are running. 63 is pretty common. http://bob_skelly.home.comcast.net/~...ternator1.html __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project



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