302 smog pump delete pulley work? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 10 Old 03-03-2010, 02:16 PM Thread Starter
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302 smog pump delete pulley work?

does the 302 pulley work on the 351?

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post #2 of 10 Old 03-10-2010, 12:17 AM
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Yes. I got one from UPR and it works great.

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post #3 of 10 Old 03-10-2010, 10:25 AM
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why not take it off and use a smaller belt?

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post #4 of 10 Old 03-10-2010, 10:59 AM
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On my 1994 I attempted that, but there was no tention on the belt. I could slide it off with no effort.
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post #5 of 10 Old 03-12-2010, 08:28 PM Thread Starter
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Quote:
Originally Posted by Spoolinfox91 View Post
On my 1994 I attempted that, but there was no tention on the belt. I could slide it off with no effort.
mine too.

did you have to use a smaller belt with the UPR?
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post #6 of 10 Old 03-14-2010, 11:45 PM
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It was a different size belt. I'll get the number off it and post it tomorrow.
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post #7 of 10 Old 03-15-2010, 11:16 PM
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I got the UPR pt # 3005-12
From Advance Auto Parts I got the Dayco pt # 5061010
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post #8 of 10 Old 04-19-2010, 02:51 AM
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Quote:
Originally Posted by Spoolinfox91 View Post
On my 1994 I attempted that, but there was no tention on the belt. I could slide it off with no effort.
That's because you guys were routing the belt wrong, assuming that you have an idler pulley as well as a tensioner pulley. You have to run it this way:



When you first put the belt on, route it around all of the pulleys, including the tensioner pulley, but not the idler pulley. The belt should run past the front of the idler pulley (pink line). At this point, you may need a helper to move the tensioner pulley over to the left while you wrestle the belt under the idler pulley with a large flat screwdriver. I'm able to do it by myself by holding the belt with my left hand and pulling down while the ratchet holding the tensioner pulley to the left is resting against my left arm/wrist and then using a screwdriver with my right hand to slip the belt under the idler. It's both difficult and painful.

As you release the tensioner to its half way point, the belt will become extremely tight, but when it gets all the way back to its normal position, it will loosen slightly. In the end, you will know you have the right belt length if it is tight and the tensioner makes it all the way back to that normal position.
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post #9 of 10 Old 05-08-2012, 11:32 AM
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Sorry to bring this back but FYI incase anyone is researching this topic...

I DO NOT recommend routing the belt this way after removing the smog pump. I bought just about every sized belt between 75 and 78. The best belt that I found to work with this combination is a 77 inch belt. This is because anything too large will rub between the fan and tensioner, causing rubber to dust your entire engine. Even with the 77 inch belt, when the engine is under heavy load (high rpm) the belt will but. I recommend buying the pulley and not going through the headache of finding the right sized belt.
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post #10 of 10 Old 05-21-2012, 09:06 PM
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My car's engine is out of a 91 Mustang. The air pump is removed completely and the system is short belted. It's routed as described in the picture - minus the idler pulley replacing the smog pump. An 84.5" belt puts the tensioner arrow right in the middle of the "range" (look closely - they're marked) and the belt doesn't come anywhere near to touching itself or doing this "rub between the fan and tensioner" -- must confess I can't understand how the fan could touch the fan as it's quite a bit forward of the belt.


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