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Old 10-29-2021, 05:53 PM   #201
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Quote:
Originally Posted by thenne1713 View Post
Bullitt6283,
Can you CLARIFY WHAT YOUR VEHICLE/ ENGINE IS, and what PARTS ##s for parts you got THAT WERE CORRECT? (I too got wrong parts for my 99E450SD 6.8, shipped to me was a TORX shoulder bolt and pulley, shoulder fit the bearing, but thread too large for hold (guessing 5/16 thread received and needed 1/4" thread???)

My vehicle is a 2016 Jayco Greyhawk 29MV with the Ford E450 chassis and the V10 gas motor.
The bolt I used is shown on the post just above here... p/n N808102 S437
The pulley I used is the same pulley that is mounted on the passenger-side of the motor. Pulley is (Motorcraft YS-385) #1L2Z-8678-AD.

https://www.jaycoowners.com/forums/f...tml#post952890


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Old 12-21-2021, 01:35 PM   #202
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I am new here. Saw this and I I think this is what I may have in my E450. I also heard the Ford torque converters slip and make noise.

Hopefully not a stupid question. How do you tell? Mine makes a little noise at about 60mph and it's right when it's about to shift.
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Old 12-21-2021, 04:59 PM   #203
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Originally Posted by 29FOOTERJAYCO View Post
I am new here. Saw this and I I think this is what I may have in my E450. I also heard the Ford torque converters slip and make noise.

Hopefully not a stupid question. How do you tell? Mine makes a little noise at about 60mph and it's right when it's about to shift.
Welcome to the Jayco Owners Forums (JOF).

My suggestion would be to add the idler pulley and determine if the noise goes away. Adding the idler pulley is a good and not overly challenging modification to do anyway and if it doesn't help today, it will as the belt ages.

For mine, the sound \ vibration was around ~2000 rpm (+or- a few hundred) and I don't remember what mph that rpm relates to, but it wasn't the mph in particular as it is with the RPM.

I could also test this with being in Park and idling up the engine, you could try that as well and listen and feel for a vibration around ~2000 (check the earlier comments for rpm specifics). ~CA
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Old 12-21-2021, 05:02 PM   #204
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Originally Posted by craigav View Post
Welcome to the Jayco Owners Forums (JOF).

My suggestion would be to add the idler pulley and determine if the noise goes away. Adding the idler pulley is a good and not overly challenging modification to do anyway and if it doesn't help today, it will as the belt ages.

For mine, the sound \ vibration was around ~2000 rpm (+or- a few hundred) and I don't remember what mph that rpm relates to, but it wasn't the mph in particular as it is with the RPM.

I could also test this with being in Park and idling up the engine, you could try that as well and listen and feel for a vibration around ~2000 (check the earlier comments for rpm specifics). ~CA
Remember the valve tap sound in older cars when you needed higher octane? Thatís exactly what mine sounded like before I installed the pulley. Sound is now gone.
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Old 12-21-2021, 05:20 PM   #205
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Thank you will look into your recommendation
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Old 12-21-2021, 11:06 PM   #206
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Originally Posted by 29FOOTERJAYCO View Post
I am new here. Saw this and I I think this is what I may have in my E450. I also heard the Ford torque converters slip and make noise.

Hopefully not a stupid question. How do you tell? Mine makes a little noise at about 60mph and it's right when it's about to shift.
One owner was able to video his belt and found that it setup a serpentine vibration ONLY at certain RPM range that coincided w/ the noise. That video maybe on youtube, not sure where I saw it?

I did finally install my driver side idler on my 1999; first purchase gave me the TORX bolt w/ wrong thread, Next correct HEX bolt w/ slightly smaller idler pulley, but I noted they BOTH use the same BEARING, so larger would just give a little extra tension? (1/8"-1/4" radius difference?)
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Old 12-22-2021, 08:50 AM   #207
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Do the new Ford V8s have the same issue as the V10s where I (and I think most of us) added the pulley to stop the vibration which makes the noise?

"All 2021 Ford E Series models feature the same 7.3L naturally-aspirated gasoline V8 Ford Godzilla engine as the 2021 Ford Super Duty that replaces the previous 6.8L V10 Ford Modular engine (known as the "Triton" in Ford's truck lineup). "
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Old 12-22-2021, 09:19 AM   #208
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Do the new Ford V8s have the same issue as the V10s where I (and I think most of us) added the pulley to stop the vibration which makes the noise?

"All 2021 Ford E Series models feature the same 7.3L naturally-aspirated gasoline V8 Ford Godzilla engine as the 2021 Ford Super Duty that replaces the previous 6.8L V10 Ford Modular engine (known as the "Triton" in Ford's truck lineup). "
So far I have not had any issues with this. We got ours back in April 2021 new and drove over 7k miles.
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