cardriverx

iTrader: (12)

It is the lower alternator bolt. It seems the stupid PO put too long of a bolt in so it just bottoms out without clamping the alternator down. This causes the alternator to be crooked and is destroying the bearings.

I just need the thread size/length so I can go to the hardware store.

Thanks guys and gals!

curly

iTrader: (25)

Generally the part number is the size.

Does M10x10mm sound like the right size?

That would make the adjuster bolts (0880 and 0835) M8x80mm and m8x35mm. You could check a few other bolts and their part numbers to see if that system works, but I think Mazda applied it to Miata parts.

fooger03

iTrader: (2)

From what I understand, the naming convention is such that the last 4 digits of your part number is your bolt size.

I believe the first two digits (in this case "10") suggest that this is an M10 bolt. I believe that the last two digits (in this case also "10") suggest that this should be a 10mm bolt. Unfortunately, that 10mm length seems unreasonably short for a M10 bolt - which throws off the whole convention thing. Perhaps it should be a 100mm bolt? I can't picture the bolt in question in my head - on the NA cars, there is an alternator bolt that seems like it was 150mm long.

The bolt on the chart above it is a 1020 Bolt, I would think 20mm would be about the minimum length to secure a stamped metal bracket to a cast metal part.

cardriverx

iTrader: (12)

It has to be at least 100mm long... hm M10 does sound right. I'll just buy a couple different lengths.

DaveC

Here's a whack idea: cut down the bolt that you have!

laguna96

It is a whack idea, because his current bolt obviously has a shank to it. That's why it's bottoming out before it's tight and cutting it down wouldn't help... unless you want to run a die over it and thread the shank which sounds like a lot more work than getting the proper hardware.