Topic: 1985 Cheitain 27 RU Alternator part number required

[Jupp318]

Hi All,
I have a 1985 Cheiftain 27 on a Chevy P30 Chassis. My Alternator has failed and I need a replacement. The one I have removed is a Delco Remy and the only number I can find is on the rear casting and is 14N. I have looked on RockAuto and one that looks right and has the same connections is a Remy 20254. What I would like is some sort of confirmaton or otherwise that this is correct for my Winnie before I get it sent over the pond to the UK.
As always any pointers/help/information is most gratefully received.
Cheers Ian...

[eXodus]

the 454 is not specific to the P30 of those years.

You can google any 454 in the Chevy Silverado 2500 and 3500 Pickups to cross check (C20 / C30). GM is very good about keeping parts compatible over a long time.
I just installed a new updated starter which only came out in 2010 on a 454 from 1996. Needed new bolts but otherwise fine.

[Mlw]

Hi Ian,

Good tip from Exodus.

And another one: have you thought about rebuilding the alternator. That's what I've done.

Watching Wheeler dealers and Salvage hunters I know there are all kinds of small business in England helping people out with classic cars at decent prices.

My alternator looked dreadfull when I brought it in and got it back like new and the cost were about the same when I would have ordered one from the USA to the Netherlands including sending costs and import taxes, which are crazy in the EU at the moment.

Greetings,

Marc

[Jupp318]

When I went on to the Rockauto website I just selected Chevrolet > 1985 > P30 > 454 so the 454 was a proper engine variant for that year. I have now ordered an alternator which will be with me Monday. That's when the fun begins with getting it fitted. It was a bit of a game going the old one out to say the least. At least I will use some copper grease when reassembling it.
Thanks for the replies.

[Oz]

Let us know, Ian! 

[Jupp318]

Ah well, the story didn't end with the fitting of the alternator. I took it for a test drive and all was well. I then had to take her to Gold RV of Alton Hampshire for some repair work. When I started her up everything seemed fine but I just needed a bit more air in the suspension but the compressor wouldn't run. I then used the battery voltmeter on the dash, it turns out the new alternator wasn't working. I took my rig to be repaired, risking it just running on the battery. Luckily I made it and asked that the new alternator be checked. The answer came back that it had failed. I used the Rockauto website to report the failure. They quickly sent a replacement without any question, which is working fine. The alternator I bought was a PURE ENERGY    7273103.

[Oz]

Glad it worked out. Eventually. 

[Mlw]

Yep, I don't know what it is nowadays but failing brand new parts seems to be the new trend.

But don't you have a ampmeter on your dash? it should always be somewhat in the chargezone. If it's not or even in the discharge zone, you know your alternator isn't working.