Alternator tension bolt (not the one you're thinking of)

[Arrow]

Hey guys, I've searched through the site, archives and all and haven't found the information that I seek...

I lost one of the tensioner bolts, it's not the one that directly tightens the alternator pulley, but the one that goes threw the odd nut (where the tensioner bolt screws into) and bolts into the alternator.

Does anybody know the size of that bolt?? I found a bolt that was the same thread pattern (still not sure what that thread pattern is) and it is currently in there, but it is too short and will not hold for too long.

Thanks for the help!

[240life]

sounds like some one needs to get to the junk yard quick!!! Seriously go find any Nissan w/ a 2.4 and source some bolts..idk the exact specs or i would give them to you, thats just what i would do. Oh yeah don't drive it like that you will just end up doing more damage than it is worth imo.

[YOUNG240SX]

The tension bolt is some thing that really not need like that both my 240 didn't have them cuz they broke...cuz most of the time when u go tight them for tension they break.have a buddy with a tire iron and side the iron under it push or pull(what ever u think would be easier for u) alternator so to give it tension but make sure u keep that tire iron in place once u see the belt it tight.so then u go and tighten the upper bolt on the alternator and u should be good to good.make sure once the car is on and runnin to check if it need to tighten better.I just did my alternator last weekend not a problem. Idk if this is goin to help u.. But my cent .2 have helped a few

[240life]

The tension bolt is some thing that really not need like that both my 240 didn't have them cuz they broke...cuz most of the time when u go tight them for tension they break.have a buddy with a tire iron and side the iron under it push or pull(what ever u think would be easier for u) alternator so to give it tension but make sure u keep that tire iron in place once u see the belt it tight.so then u go and tighten the upper bolt on the alternator and u should be good to good.make sure once the car is on and runnin to check if it need to tighten better.I just did my alternator last weekend not a problem. Idk if this is goin to help u.. But my cent .2 have helped a few

I believe manufacturers put bolts in places for a reason...call me crazy or just right....hope the vibrations don't loosen your altenator up and cause your belt to fall off when your 100 miles from home with no tools it is a $2 fix.

[ryan15]

call em crazy but b series honda motors dont even use a tensioner bolt... so if a honda doesnt im sure it would be just fine.Ryan

[got chub]

the short stubby one that the other bolt screws into is about 10 buck at the dealer and the long one is a bit less

[YOUNG240SX]

call em crazy but b series honda motors dont even use a tensioner bolt... so if a honda doesnt im sure it would be just fine.Ryan

Thank u ryan!!

240life- I did it to both of my 240s and bugged out with them 100mph+ and no problems...and I never go anywhere with out tools.

[Arrow]

the short stubby one that the other bolt screws into is about 10 buck at the dealer and the long one is a bit less

Yeah, I'm talking about the short(er) stubby bolt. Does anyone know it's length? I believe that it is an M8x1.25 bolt, I'm just not sure about it's length. The one I have in there temporarily is about an 1" or 1.25" long and is too short (it goes into the alt. but not far enough to hold good)

To the others, I believe it could be possible to go without that bolt, however I would prefer to have it installed and functional the way that Nissan intended our car to be designed - at least for now until I have another vehicle so that I can do some custom fabrication for my 240. Just my preference though...

[S14toRPS13]

Most of the Nissan bolts are 1.25. If you need it a little bit longer, just take your current bolt to an autozone and buy a longer bolt with the same thread pattern. It's too easy!

[got chub]

the bolt you are talking about is a dealer specific item. when i had to replace mine i checked auto zone and advanced neither of which had it.

[Arrow]

Do you know what the length is of that specific bolt? I just went by Lowes and picked up a package (2 bolts) that are M8 x 1.25 x 45

The bolt that I have in there is only about 1" long so it only threads into the alternator about 1/4" which is not enough to hold itself in for extended periods of time.

[240life]

call em crazy but b series honda motors dont even use a tensioner bolt... so if a honda doesnt im sure it would be just fine.Ryan

If it were a HONDA motor we wouldn't be talking about a 240sx which DOES have a tensioner bolt HONDA=FAIL andso did that post

[240sxRAOR]

The tension bolt is some thing that really not need like that both my 240 didn't have them cuz they broke...cuz most of the time when u go tight them for tension they break.have a buddy with a tire iron and side the iron under it push or pull(what ever u think would be easier for u) alternator so to give it tension but make sure u keep that tire iron in place once u see the belt it tight.so then u go and tighten the upper bolt on the alternator and u should be good to good.make sure once the car is on and runnin to check if it need to tighten better.I just did my alternator last weekend not a problem. Idk if this is goin to help u.. But my cent .2 have helped a few

They keep braking because your suposed to loosen the on on the alternator before you adjust it. Then tighten it back up to like 30 ftlbs.

Also I have lost the bolt your talking about and I know advanced auto had the right leanth and thread bolts and nuts I just cant remember what it was other than metric.