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> 1992 940 Gl Alternator Belt Size?
Junkie2100
post Jun 4 2020, 01:26 AM
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have a 92 940 GL, non turbo, alternator belt broke, whole things gone, no way to identify original, auto parts store search turned up 39 inch belt(roughtly 1000mm) slightly too short, tried a 51 inch(roughly 1300mm) belt from a 91, way too long. judging by the 2 belts ive tried and a tape measurer im guessing i need something like a 43 inch belt, but thats a way more expensive belt and its difficult to get to the parts store once with no running car let alone repeatedly. so i have 2 questions

1. does anyone here have said vehicle and can tell me what size belt it actually is?

2. am i properly trying to replace it, i loosen the tensioner as far as it will go, then try to slip the belt over and tighten it back up, nothing actually gets disconnected correct?
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grendel1960
post Jun 4 2020, 02:05 AM
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How much too short is it, from memory most of those engines are an absolute pain to get the belts back on, the tensioner from slack cant be pulled all the way to its furthest extents with the travel in the space available available, and to get the belt on it needs to be asa far as it will go. Also the belt will differ depending upon the accessories fitted, as will the belt routing.
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Junkie2100
post Jun 4 2020, 02:27 AM
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QUOTE (grendel1960 @ Jun 4 2020, 02:05 AM)
How much too short is it, from memory most of those engines are an absolute pain to get the belts back on, the tensioner from slack cant be pulled all the way to its furthest extents with the travel in the space available available, and to get the belt on it needs to be asa far as it will go. Also the belt will differ depending upon the accessories fitted, as will the belt routing.


the 39 inch belt is just a bit too short, the belt is almost long enough to where if it was on the pulley it would be tight with the tensioner or "pivot bolt" i believe its called, all the way loostened. the attached pictures are a slightly stretched 39 inch belt, and the super long one is a 51 inch belt
Attached File(s)
Attached File  39inchbelt.jpg ( 884.82K ) Number of downloads: 1
Attached File  51inchbelt.jpg ( 1.24MB ) Number of downloads: 1
 
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Junkie2100
post Jun 4 2020, 02:34 AM
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also as far as accessories fitted, it has the one main pulley obviously, has one belt that goes from there to the water pump and then the power steering on the right hand side of the car, your left if looking into the engine compartment, on the left hand side, your right if looking on the engine from the front of the car, it has the alternator, which apparently just had the single belt from the main pulley, then you have a separate belt to go to the ac down below that which i just cut off because it was in the way, the compressor is bad, and the tensioner on that thing is broken
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Junkie2100
post Jun 4 2020, 02:54 AM
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and this is the pivot bolt, it is fully extended as far as i can tell i just kept spinning it and spinning it never seemed to stop, i went till i was pretty sure it was all the way and i couldnt feel it out the other side of the hole then i kept going for who knows how many more turns, even if its not all the way out its plenty close enough that it cant make up for the size of that belt. and you can tell where it was before i loostened it too by the coloration
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Attached File  pivotbolt.jpg ( 1.23MB ) Number of downloads: 2
 
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Junkie2100
post Jun 4 2020, 03:29 AM
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ok so one more update, looking at that picture the bracket had plenty more give available, so i pulled the pivot bolt all the way out, it didnt have much further to go, and now it swings freely all the way to the end of that little bracket, so the belt goes on perfectly fine that way, no problem there, the problem is the bolt isnt long enough to reach the hole with the belt on. and even if i could force it leaning on a crow bar or something, i dont want it hanging on by 1 or 2 threads that just asking for trouble, so i figure my best option is to get a longer bolt. not the solution i wanted, but long term i think its going to be a better solution give more options to me for possible future belt replacement. if anyone else has any further input trust me i am all ears but i think that is the way i have to go sadly
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grendel1960
post Jun 4 2020, 06:06 AM
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the important thing is that you have a solution, and plenty of spare adjustment for when the belt stretches.
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grendel1960
post Jun 4 2020, 06:15 AM
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searching on the internet tells me the belt should be about 1m in length (i have seen sizes from 1000mm to 1013mm - 39.4" to 39.9") so if your belt is 39" it will be tight, but not by too much, so your longer bolt will be the way to go.
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