Possible newb trouble

boss302man · November 10th, 2011, 01:37 PM

I recently picked up an 86 5.0 as a project car and didn't poke around the engine to much. The only thing i cared about was that it ran and drove. It has a squeal on start up so I figured it was the alternator. Well under further inspection, I noticed it does not have a belt tensioner. I bought a belt tensioner and pully. but I'm not quite sure how to bolt it up.

I noticed while searching for parts that some tensioners came with a bolt. But of course this one didn't.

Since I am currently going to mechanic school, I have access to Alldata and Mitchell, but they have no instructions on tensioner install.

So I guess my questions/theories are:
Where you would but the 3/4 drive to relieve tension, the bolt goes on the opposite side which is connected to a bracket, which is connected to the alternator? If anyone has any close up pictures or a detailed instruction on how to go about putting one in that would be great.

Thanks a lot for the help and I hope I made myself clear.

MakeFast · November 10th, 2011, 09:49 PM

Im sorry for doubting you, but there is no sense behind removing a tensioner. If it were missing the belt would have soo much slack it wouldnt be able to be installed? The tensioner goes between the alternator and smog pump (if applicable) and I dont believe its a 3/4 drive hole, its probably a 3/8 or a 14-15mm wrench right onto the bolt holding the pulley on. Double check.

boss302man · November 13th, 2011, 12:20 AM

Originally Posted by MakeFast

Im sorry for doubting you, but there is no sense behind removing a tensioner. If it were missing the belt would have soo much slack it wouldnt be able to be installed? The tensioner goes between the alternator and smog pump (if applicable) and I dont believe its a 3/4 drive hole, its probably a 3/8 or a 14-15mm wrench right onto the bolt holding the pulley on. Double check.

Believe me I know its pointless to remove the tensioner... I would never have done that. But the belt does have slack, so he might have at least installed a shorter belt.

The tensioner should be a simple bolt on, but my main question is what size bolt holds the tensioner on? what grade, thread, bolt, head size is it? Any help is greatly appreciated.

gripthenboost · November 13th, 2011, 06:57 PM

maybe wrong belt?

November 10th, 2011, 01:37 PM	#1
boss302man Newbie 2004,1986 Join Date: Nov 2011 Location: Chicago Posts: 5 iTrader: 0 reviews	Possible newb trouble I recently picked up an 86 5.0 as a project car and didn't poke around the engine to much. The only thing i cared about was that it ran and drove. It has a squeal on start up so I figured it was the alternator. Well under further inspection, I noticed it does not have a belt tensioner. I bought a belt tensioner and pully. but I'm not quite sure how to bolt it up. I noticed while searching for parts that some tensioners came with a bolt. But of course this one didn't. Since I am currently going to mechanic school, I have access to Alldata and Mitchell, but they have no instructions on tensioner install. So I guess my questions/theories are: Where you would but the 3/4 drive to relieve tension, the bolt goes on the opposite side which is connected to a bracket, which is connected to the alternator? If anyone has any close up pictures or a detailed instruction on how to go about putting one in that would be great. Thanks a lot for the help and I hope I made myself clear.

November 13th, 2011, 06:57 PM	#4
gripthenboost Hardcore Enthusiast 91 Mustang GT 1991 sliver GT Join Date: Apr 2010 Location: New York Posts: 1,213 iTrader: 0 reviews	maybe wrong belt? __________________

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November 10th, 2011, 09:49 PM	#2
MakeFast Newbie 1995 Mustang GT Join Date: Nov 2011 Location: Thunder Bay, Ontario Posts: 11 iTrader: 0 reviews	Im sorry for doubting you, but there is no sense behind removing a tensioner. If it were missing the belt would have soo much slack it wouldnt be able to be installed? The tensioner goes between the alternator and smog pump (if applicable) and I dont believe its a 3/4 drive hole, its probably a 3/8 or a 14-15mm wrench right onto the bolt holding the pulley on. Double check.

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