| Author |
Message |
Steve Fessenden (63.11.118.30)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, January 18, 2001 - 8:27 pm: | |
I need a high power belt driven alternator.
I will have two 24 volt alternators, one for
house batteries and one for bus batteries.
I have a Leese Neville 12 volt 105 Amps unit which is being converted to 24 volt but will only be able to put out around 60 Amps at 24 volts.
The current 24 volt alternator is a Delco type 25S1 which says it is 50 Amp on the ID plate.
It has a much longer body than the Leese Neville, about 12 to 14 inches. I cannot put in an alternator any longer than that. There is air conditioning plumbing right behind it.
When I bought this bus I was told it had a 205 Amp alternator but when I had the alternator serviced I was told it was a 75 Amp alternator.
Is there a 205 Amp version that will fit in the space of a large Delco, model 1117249?
I want to improve my battery bank and I need to be able to charge it on the road. I can fir up to 12 golf cart batteries in the existing battery space and move the starting batteries to a new location (still right next to the engine). That would give me 660 Ampere Hours at 24 volts. It would if they were 50% depleted it would take over 6 hours to charge them with a 50 Amp alternator.
Steve Fessenden |
Gene R (165.247.178.151)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, January 18, 2001 - 9:05 pm: | |
Steve, First the Leece Neville can be made to put out 100 amps at 24 vts with the right stator and rotor combo. Most of the parts for that unit are now made by some else and the quality is not what it used to be. If you buy a Leece Neville new now you will get what once was a Motorola Load Handler which is a much better unit. I run a 24vt 100 amp version which is about half the length and weight of your 25SI Delco. L N claims it is a 100% duty cycle unit but a good rule of thumb is not use over 70% of rated alt output for the unit to live because of heat. The 25SI Delco has a history of failing because of the weight of the stationary field windings coming loose and very poor heat disapation of the case. The Load Handlers can be bought from most automotive electrical shops. A company called Diesel Injection has them and they have locations all over the Eastern US. They have built in regs with adj from the outside. "one wire alts" The last one I bought was around 195.00 new. Does the Delco number "1117249" have any other id? Such as DN or SI ? That number sounds like the 25SI.?? I'm not at the shop to look it up. If it is, don't try to make it a high amp 24vt for the reasons above. I can get you some numbers on the load handlers if you need them. They also make a 150 amp 24vt about the same size as the 100 amp. You can email me if you need more info. Gene R |
Earl-8-Ky (209.250.47.52)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, January 18, 2001 - 9:11 pm: | |
Steve you don't say what engine you are working with. I have a 8V71 in my bus and my alt. is belt driven from the bell housing end and it is 225 amp. It is driven with 4 delts. If you have a detroit you should be able to use either a gear driven or a belt driven alt. Hope this helps. |
jmaxwell (63.71.188.65)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, January 18, 2001 - 10:29 pm: | |
the delco 50-DN is rated at 270 amps (175 @ 1600rpm)24v, oil cooled, belt or gear driven. |
Steve Fessenden (63.27.88.76)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, January 19, 2001 - 7:58 pm: | |
Thanks for the responses. I have a Prevost with an 8V71TA. I want to stick with the belt driven generators if I can for accessability. I can't get to the back of the engine to service the alternator like on a V drive.
Thanks again SF |