Did the search , notta.
Cruising up into Canada, rock steady 2200 RPM and the volt meter drops to 12.0 from a steady. 13.6.
Started the genset and combined the batteries. I will need one when I get home . Anyone converted to Delco?
I "currently" have the OE Leece Neville. Thanks as always.MM
I have had great service from Hutchersons in Tampa They are on 50th street about a half mile south of hwy 60. It may just need brushes. I would check the brushes, maybe one of them is sticking.
Thanks. I am in NY and Canada for another month but fly back to Tampa next week.
Maybe I should bring it with after i run the wires back.
It is pretty easy to check the brushes, just take off the voltage regulator and the brushes are right there. check if one of them may be stuck and not making contact with the slip rings. Make sure no power to the alternator when reinstalling the brushes and regulator. There is a small hole in the rear of the alternator that you can use a paper clip or small drill bit to hold down the springs for the brushes and then when the regulator is placed back before tightening the screw pull out the bit or clip.
Sticking brush if that's what it is might just benefit from a percussion adjustment.
It is better to remove and clean, but your suggestion might work.
Red you posted your great reply, while I was posting my last ditch reply.
Learned the hard way,had our LN rebuilt by a good shop,lasted 20k miles,got the 28si delco for less then the rebuild cost,much
steady voltage at idle,13.7.If the one part they don't replace fails your screwed.We limped home from washington state last year with no alternator.
Lewco in Costa Mesa, ca rebuilt our LN. bearings and one diode after 120k miles. Dan remarked at the large heat sinks.
$300 range. Good for another 120k Miles.
Adjustable voltage and the amps needed for 1/5th C charge rate of 675 amp hours of house batteries was the original idea
My Cummins shop foreman mentioned a 14.15 volt larger Delco alternator with a sense wire.
The oem system we still have has worked well for a long time.
NEW ALTERNATOR DELCO 28SI 8600307, 8600311 8600308 LESTER 8744 8745,... (https://www.ebay.com/itm/NEW-ALTERNATOR-DELCO-28SI-8600307-8600311-8600308-LESTER-8744-8745-ALT-1282/142445559067?hash=item212a6abd1b%3Ag%3AVAAAAOSwYc5aE0KR&_sacat=0&_nkw=28si+delco+alternator+&_from=R40&rt=nc&_trksid=m570.l1313)
Like this one?
True the OE Alt is 30yrs old and worked fine for 134K
If you go that route just make sure you get an actual Delco brand one,that one sound like it's not a Delco brand.The Delcos are a little more money.Will look up where I got mine,also got a new pulley.Part number for the 8.3 Cummins is 8600308.This is the
160 amp model,they have ones with more amps but my LN was 130 so the 160 works for me.
I bought a genuine Delco-Remy 8600308 in the factory box on eBay last year for $209.51, free shipping. I don't see another one right now. I would have just had the existing alternator locally repaired but the PO had replaced it with the wrong one. I understand the old soundproofing decomposing and getting into the alternator is one of the causes of failure so replacing the sounding proofing is on my short list.
DELCO REMY 8600308 - New Alternator 28SI 12V 160A | eBay (https://www.ebay.com/itm/DELCO-REMY-8600308-New-Alternator-28SI-12V-160A/302761896221?epid=1929601275&hash=item467e03e91d%3Ag%3AAw4AAOSw6Jxa9lB5&_sacat=0&_nkw=Delco-Remy+8600308&_from=R40&rt=nc&_trksid=m570.l1313)
I replaced my LN with a Delco Remy 40si 240 amp brushless alternator. I have about 1500 amp hrs of batteries so a bigger alternator was indicated. Shop around for price. I found a new one in original packaging on eBay for about 1/3 off normal pricing. The LN still checks out if someone wants one.
Delco 40si 240 Amp Alternator, Sterling ProSplitR Installation (http://www.foreforums.com/index.php?topic=28384.0)
One of the pictures has a misleading label and the post is no longer editable. The Delco 40si needs a + wire to the isolator, a ground wire and a sense wire. The old excite wire is not needed for the alternator but it was repurposed to provide an ignition powered signal to the smart Sterling zero voltage drop isolator. Other Delco's may be wired differently. Be sure to follow the details.
This was a not too hard project that had a big payoff.
That one looks like a clone, I insisted on one shown in the factory box.
Foretravel has always equipped their coaches to have 1/5th C charging systems from both the inverter and alternator.
The 96 270 poster has 2 8g8d's and a 130 amp alternator, not 160 and a 2000 watt 100 amp Charger while the 97 320 has three 8g8d's and a 160 amp alternator and a 130 amp charger to match.
New ih45's have 6 house batteries and 320 amp alternator and 250 amps of chargers to match
The Delco 8600308 is a 160 amp alternator,that's what I have,I had a LN 130 amp.That's the same thing I said in the above post.
The 28si comes in 160,180 and 200 amps,if you want 130 then get your LN rebuilt but remember it's only as good as the weakest
part.
My Ln went 2800 hours. And needed the bearings and one out of six diodes. Do the Delco's have an adjustable voltage regulator on them? I,am sure they are a quality unit but the corect sizing is necesssry. As is the ability to turn down the voltage.
Retaining the 1/5 C charging rate as specified by the battery makers is necessary for the longest, ,best retained capacity, battery life.
Mike,
Assumed you have done the troubleshooting to rule out the battery isolator and wiring.
Just fixed it. Ran the wires and the short wire to the fuel run solenoid was comprised. Bumpy road .old wire.
Thanks for the tips.
This alt has a rebuild tag on it.
I will probably look at the Delco strickly for a service standpoint . I like being 1 day from parts.
Mine charges at the same 13.7/13.8 that the LN did only it does this at idle when the LN did not,as far as I know you cannot adjust
voltage,did not research.Like I said,if you want the 130 amps then get the LN rebuilt,mine lasted into the 4000 plus hours,and on
the Alaska trip it quit,maybe it was the dust,not sure,but I was not going to get it rebuilt again,and yes it was a good shop that
rebuilt it that I have used for 30 years for oilfield electrics.
My 2 cents on the dust from the old insulation,if the dust from the crumbling insulation does get into bearings and the like then
take all the old stuff off and DO NOT cover the old stuff with the new,it will still crumble and end up in the bearings,and it looks
alot flatter and neater without the old crap bulging thru.