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Old 09-12-2015, 06:58 PM
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Default air pump

I by passed my air pump because it froze up will that hurt my engine until I can fix the air pump
Old 09-21-2015, 06:32 PM
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If you still have the original catalytic converter in the truck it could be damaged from not having the air pumped into the exhaust.
Old 03-31-2018, 05:56 PM
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I'm having the same issue on my '92. I'm wondering if I can grind the head on the alternator bolt thinner. or find a smaller/socket head bolt to replace it, to give the re-routed belt enough room.

Has anyone out there ever successfully ran a narrower poly-v belt without causing TEOTWAWKI?
Old 04-01-2018, 12:11 PM
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It's not that hard or expensive to just fix the air pump:


(phone app link)


And if that doesn't work, they're not expensive or rare at junkyards or parts stores.
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Old 04-01-2018, 09:56 PM
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Originally Posted by Steve83
It's not that hard or expensive to just fix the air pump:


(phone app link)


And if that doesn't work, they're not expensive or rare at junkyards or parts stores.
Mine spins okay- Its just not connected to anything! Its just a parasitic loss-inducing idler pulley now!
Old 03-29-2021, 02:12 PM
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Default Air pump bypass belt size

Originally Posted by slitter
I by passed my air pump because it froze up will that hurt my engine until I can fix the air pump
I used a dayco 5060825 in my 95 f150 4.9l. That's keeping the ac. Make sure you plug vac lines to tab/tad solenoid. The belt did not interfere with the bolt on alternator at all. I'm not having any issues what so ever.


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