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Old 04-20-2021, 09:13 PM   #15
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Quote:
Originally Posted by Hokie-Dave View Post
I'm going to be doing this mod this weekend. Just to clarify, the pulley goes up against the block, then the washer and bolt go in, right? Nothing between the pulley and the block?

dave
Dave,

The pdf in the link below doesnít indicate that thereís another washer, etc. I mounted mine with the bolt and washer as shown. Itís tricky working in the tight space, but I was able to deflect the belt enough with one hand and thread the bolt in finger tight. Then tightened with a socket.

https://www.jaycoowners.com/forums/a...2&d=1608410029
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Old 04-21-2021, 07:03 AM   #16
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Look at the other pulley and match that configuration.


Quote:
Originally Posted by Hokie-Dave View Post
I'm going to be doing this mod this weekend. Just to clarify, the pulley goes up against the block, then the washer and bolt go in, right? Nothing between the pulley and the block?

dave
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Old 04-21-2021, 03:44 PM   #17
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I just returned from a 2000 mile trip after installing the pulley. It solved my problem.
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Old 04-25-2021, 07:32 PM   #18
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Installed the pulley, took it for a drive around the block. Got up to 70ish and let off the gas several times, no noise.


At this point, I would say the issue is resolved. After our next several hour trip with it, I will post back with more feedback hopefully stating the same thing.
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Old 04-25-2021, 08:16 PM   #19
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Quote:
Originally Posted by GABob View Post
This is apparently an all too common problem on the V10. As someone noted earlier, it's been discussed at length on the Jayco board. I just installed the idler pulley (kept the same belt as it looked good and only 14K miles on it) before a trip last week. The noise started up around 9 or 10K on the engine, and sounded like the old low octane valve tap.



Numerous folks have performed this mod, and all so far have stated it works well. I just did about an 800 mile R/T and there was NO noise.


Interestingly enough, there was enough play in the belt that I didn't have to remove anything to install. I just used a stepladder to get my hands down there, and could hold the belt aside enough while I ran the bolt in finger tight. Was then able to use a small drive to tighten. If you wanted to use a torque wrench you would need to disassemble a bit, but as someone pointed out the travel of the belt is in the same direction so it likely won't be a concern.




I ordered the pulley and bolt from Lakeland Ford. While I initially ordered the wrong part, they advised me of the correct one based on my VIN:


This message from Lakeland Ford Online Parts is intended for XXX in regards to order #123456.
Your order has been updated as follows:

We appreciate your purchase with us!
Unfortunately, the part ordered does not correspond to the provided VIN number.
The part ordered: F65Z8678AAA
The VIN correct part: 1L2Z8678AD


The attached pic shows the location of the idler pulley. The location of the engine is threaded, so in all likelihood it was deleted as a cost savings measure by Ford.
Which is the pulley to replace?
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Old 04-25-2021, 09:00 PM   #20
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It’s not a replacement, it’s an addition.
Read page 1 of this thread for the details your looking for.

I got the parts on Amazon
Ford 1L2Z-8678-AB, Drive Belt Idler Pulley
Ford Genuine Idler Pulley Bolt -N808102-S437

2017 Ford E450, Thor 30FE
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Old 04-26-2021, 11:11 AM   #21
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Quote:
Originally Posted by GABob View Post
This is apparently an all too common problem on the V10. As someone noted earlier, it's been discussed at length on the Jayco board. I just installed the idler pulley (kept the same belt as it looked good and only 14K miles on it) before a trip last week. The noise started up around 9 or 10K on the engine, and sounded like the old low octane valve tap.



Numerous folks have performed this mod, and all so far have stated it works well. I just did about an 800 mile R/T and there was NO noise.


Interestingly enough, there was enough play in the belt that I didn't have to remove anything to install. I just used a stepladder to get my hands down there, and could hold the belt aside enough while I ran the bolt in finger tight. Was then able to use a small drive to tighten. If you wanted to use a torque wrench you would need to disassemble a bit, but as someone pointed out the travel of the belt is in the same direction so it likely won't be a concern.




I ordered the pulley and bolt from Lakeland Ford. While I initially ordered the wrong part, they advised me of the correct one based on my VIN:


This message from Lakeland Ford Online Parts is intended for XXX in regards to order #123456.
Your order has been updated as follows:

We appreciate your purchase with us!
Unfortunately, the part ordered does not correspond to the provided VIN number.
The part ordered: F65Z8678AAA
The VIN correct part: 1L2Z8678AD


The attached pic shows the location of the idler pulley. The location of the engine is threaded, so in all likelihood it was deleted as a cost savings measure by Ford.

I love this site!! I have been hearing this rattle as well.. I only have 8000 miles on my motor and it sounded like detonation ping.. After reading this I checked the spot on the motor.. Yup. NO PULLEY..


I immediately ordered the Pulley and Bolt. Should be here next week..
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Old 06-19-2021, 04:26 PM   #22
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So after the trip from Ohio to the Grand Canyon and back, all the squeaking associated with the fan belt is gone.
However, I still have a rattle when I let off the gas around 75mph. I am towing a focus and it’s worse when heading down a hill.

The noise sounds like it is under the passenger seat, centerline somewhat and perhaps from the tranny?
Not sure if it’s a heat shield, does not sound like a heat shield.
I’m at a loss.
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Old Yesterday, 12:02 AM   #23
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CHECK YOUR SERPENTINE DIAGRAM UNDER HOOD AND THEN CHECK DRIVER'S SIDE for missing Idler; yours may/ may not? But if that is your issue, cure is $15-$30 and 2-5-minutes work, per most who added? Cured their issue, but maybe not your cause of noise? I bought mine, but not yet installed... Have had intermittent rattle that once thought was valve clatter, later thought maybe bought some 85-octane in mountains by mistake, or related to the 8-foot exhaust pipe that I later found I lost on the road after a pot hole... (Exhaust now x3 wrap around hangers per sections, then some SORRY B stole the catalytic last month :-(
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