M35 Alternator

[bigkevracer]

Car has started making epic squealing noises, and after an initial panic that it was turbo related, it looks like it's now alternator. Hopefully that proves right when I pull the belt off and check, but some basic tests show that it's most likely, and probably explains some battery deaths and other electrical issues.

I couldn't find a part number on here - surely someone has replaced an alternator on an M35? Anyone rebuilt one? Seems like bearings so we're tossing up rebuilding it and replacing the bearings depending on costs etc.

Everything in an alternator search seems to be RB... no VQ love.

[joshm35]

Scott to the rescue

[bigkevracer]

Surely Scott isn't the only one that knows.

If 350Z belts are the same as NM35 belts, I guess that means the alternator is probably the same (well, it looks like the VQ35HRs had a different alternator to the VQ35DEs, bu you get my point).

Looks like 350Z units are available out of the US for $150-200, or high amp versions for $200+.

[joshm35]

I was talking about having a spare if needed

[bigkevracer]

lol ok. He should have a couple.

Part number for VQ25DD and VQ35DE is 23100-CD010, Amayama have them for $507. Surely a VQ25DET would be the same as those two?

Fortunately it looks like its a standard Mitsubishi part, so bearings are available, part number 2312030R10 and 231200V017, Amayama flog them off for $25 or less per bearing (they want FIVE HUNDRED DORRAH for a complete alternator!).

[scotty nm35]

I have one here if you need it mate, otherwise rip it apart and check the bearing numbers, they should be available at the local bearing supplier...

I would be cleaning up the slip rings on a lathe and replacing the brushes if you can find them.

[bigkevracer]

Cheers mate. Dad's got a lathe so that should be fine. Not sure about brushes, might have to get a sparky to do that bit.

Sounds like there are a few 350Z owners in the states putting higher amperage units in for stereos etc. Not sure if that's worth doing at the same time, but seems like pulling it apart is going to be cheapest, easiest and quickest.

[iamhe77]

VQ25det alternator part # is 23100-AM610 which was superseded by 23100-AL31A according to FAST.

I think you can find that on the V35 and it would seem that the 2003 Pathfinder (3.5L) also used it - quick Google search

[bigkevracer]

Cheers Cam. First things first I'll rip it off and see if I can rebuild it with new bearings.

Funny thing is P/N 23100-AM610 can be found online from a bunch of places. Only two hits for 23100-AL31A, one being this page.

If it's the same as the V35 and Pathfinder, why wouldn't it be the same as 350Z different p/n, so must be different, maybe higher amperage?

[iamhe77]

23100-AM61A

Sorry about the typo (was looking up a number of parts at the time )

[joshm35]

I have been doing some research but cant find a definite answer. Do you know if the 350z alternators with the vq25det as they look almost identical without measurements.

[blackaxis]

If it helps I put a second hand one from a vq35 from a v35 skyline in mine... been in there over 2 years with no issues..

[scotty nm35]

Confirmed they are the same then. Thanks Kieran.

[joshm35]

Confirmed that a 350z alternator fits the vq25det