Fiero Belt Tensioner (Page 24/27)
Fiero Vice MAY 15, 02:27 PM

quote
Originally posted by Alibi:

So I went ahead and rode my motorized bike down to the parts store with my old belt to select a new one. The guy at the parts counter was reading the OC number (outside circumference) instead of the length in the part number though and kept trying to tell me a belt with a part number of K050405 was a 41.25 belt. The K number is the number of ribs (05) and the next 3 numbers are the length in inches (040") and the last number is a decimal (.5). Therefore its a 5 ribbed belt thats 40.5 inches long. I kinda thought the parts guy would know that but whatever...

Anyway, they didn't have a 41 inch belt in stock but they did have a 40.5 inch belt so I took it. Its a bit of a tight fit to get it on, but it seems to be just fine from just letting the motor idle. With the 40.5 belt, the tensioner is using up about 2/3's of its total travel which I think is OK and as the belt stretches it will use up a bit less. I think the 41 inch belt would actually be the better choice, however, as it would take up a little less tension travel to pull it closer to center and it would be easier to put on.

The only problem is that I used a 3/8 ratchet wrench to pull the tensioner back and now there isn't enough room to get it back out so it looks like I'm going to have to find out what size the square boss on the top of the tensioner is and pull it back with a wrench to retrieve my ratchet before I go on a test drive.

So in closing:

-With Rodney's power pullies use a 41 inch belt.
-41" belt.
-Don't use a ratchet, use a wrench on the boss on top of the tensioner or you'll not be able to get the ratchet back out of the recess in the side of the tensioner arm.



Thanks for the info.

[This message has been edited by Fiero Vice (edited 05-16-2018).]

Fiero Vice JUN 03, 06:34 AM
Dodgerunner,

Got my bracket!

Looks great! Can't wait to install it.

Thanks,
0z DEC 05, 10:43 PM
I just bought an 88GT about a month ago. It squealed every time I started it. I read through this thread and decided I had to get one of these belt tensioners.
I go out to the car and low and behold it already had one! ???
The tensioner was right up against the crank pulley, so I figured all it needed was a shorter belt.
The previous owner had a 457 belt on there. I got a 450, put it on and so far so good.
Spadesluck DEC 07, 05:03 PM

quote
Originally posted by 0z:

I just bought an 88GT about a month ago. It squealed every time I started it. I read through this thread and decided I had to get one of these belt tensioners.
I go out to the car and low and behold it already had one! ???
The tensioner was right up against the crank pulley, so I figured all it needed was a shorter belt.
The previous owner had a 457 belt on there. I got a 450, put it on and so far so good.



That's an easy fix. Ha.
FieroVin APR 29, 11:06 AM
Perhaps a bit off topic, but I was searching this topic for the belt size as I have had this setup for several years now (and BTW love it!) My alternator failed, belt broke and I was able to find two places in town that had what they said was the right alternator for my 87GT but one had a V-belt pulley and the other had a 6-groove serpentine pulley. I have swapped pulleys in the past but this time the pulley was damaged when the alternator failed.

The question is this: Can I run my 5-grove belt on a 6-groove pulley without issue or do I need to find a 5-groove pulley somewhere? The grooves look like they are the same size. The local AutoZone and Advance Auto were no help when I asked them how I get one with the right pulley on it.

TIA

Vin
Spadesluck APR 29, 11:23 AM

quote
Originally posted by FieroVin:

Perhaps a bit off topic, but I was searching this topic for the belt size as I have had this setup for several years now (and BTW love it!) My alternator failed, belt broke and I was able to find two places in town that had what they said was the right alternator for my 87GT but one had a V-belt pulley and the other had a 6-groove serpentine pulley. I have swapped pulleys in the past but this time the pulley was damaged when the alternator failed.

The question is this: Can I run my 5-grove belt on a 6-groove pulley without issue or do I need to find a 5-groove pulley somewhere? The grooves look like they are the same size. The local AutoZone and Advance Auto were no help when I asked them how I get one with the right pulley on it.

TIA

Vin



I am sure it will work as long as you have the belt in line with the rest of the pulleys, However it could shift and cause the belt to wear out prematurely. I would just try to find the right pulley from the start.
Dodgerunner MAY 29, 10:30 PM

quote
Originally posted by Spadesluck:


I am sure it will work as long as you have the belt in line with the rest of the pulleys, However it could shift and cause the belt to wear out prematurely. I would just try to find the right pulley from the start.



It's good to remember to have the store, or yourself, swap your original pulley onto the new Alt. When I switch my 85GT to the newer Alt. Oreily's swapped it right in the store for me with their electric impact.

randy86 JUN 20, 04:41 PM
Are you still selling these?
capn_r JUN 26, 06:29 AM
I got one from him about two months ago. I sent him a PM and he replied very quickly. A great product deserving of all the kudos!
PK JUN 27, 01:17 PM
As above got mine a few months ago. Brilliant.