I installed my pullies some time ago, now sometimes at startup my belt squeels, or when I turn on my a/c it does, or shiffting hard it does. I actually feel it slip on the performance aspect.

Now I spoke to crystal and she said to adjust my tenssioner. Would you or anyone else know how to do this. I really havent a clue how to other than purchasing a new belt because it is really loose on there. I cant find any place that carries a belt as well for the 05 4.6. Help a brother out.

 

You didn't install a shorter belt? Think about it, you're reducing the diameter of the pullies on three different mechanisms. Reduce the belt size and your problems should disappear

 

I second this, you have to install a shorter belt, had to on my Mustang and the pully directions don't tell you that, or at lease BBK don't....
BTW, be prepaided to make 2 or 3 trips to the parts store getting the right size....I did.....

 

They told me I could run off the stock belt. I thought I should have to change but I've been told that the stock belt should run it fine, what size belt would, or did you guys run with?

 

The Troyer pulleys are only a two pulley set, as the alternator pulley is not replaced. You may need to tighten the tensioner, consult your shop manual, or replace yours with a Gatorback belt from Troyer or others. LOL

 

I just dont understand how you can adjust something like that.

 

If you don’t have a Gatorback get one, they’re about $30 bucks or so and more than likely will do the trick

 

When looking at the belt, there will be a number on it. (something like
4060xxx.....For this example we'll say 4060465) If its 4060465 go to the parts store and look for a 4060463 or so. They don't make every single number, but you should be able to find one size smaller.

As for adjusting the tensioner, I didn't know that could be done. It's spring loaded and screwed in. How do you adjust it WLF?

 

Hi noname,

No, there is no "adjustment" on your tensioner, other than to make sure it's spring is still in good shape. And I just went over that with Crystal and everyone else to make sure they understood that properly - I don't know where Crystal got that idea, perhaps she misunderstood something I said with regard to making sure that the tensioner is properly in place and the spring tight, etc. - so that may simply have been something she misunderstood in what I told her.

And contrary to the info posted here regarding other vehicles, with our 2-piece underdrive pulley set for the 1997 & newer F-150 with either V8 engine, you do NOT need to change your serpentine belt length - the only reason you are getting belt squeal, assuming your tensioner is in good condition, is because your original belt is in need of replacement. All factory serpentine belts are garbage, the cheapest the automakers can negotiate, always have been.

Use the EXACT SAME SIZE of Goodyear Gatorback belt - do NOT go shorter, use the exact same size. That is the cure.

Our 2-piece pulley set is sized specifically to NOT need to use a shorter belt, and in all the many times we have installed them, not once has anyone gotten any belt squeal they didn't already have - now when someone installs their pulleys AND their tuning at the same time, *THEN* they can get belt squeal where they didn't have it before, and that is due to the additional power and much quicker shifting.

The bottom line is, assuming the pulleys are installed properly and the tensioner is in good shape, there is one cure for this, and that is to replace it with a Goodyear Gatorback belt of the exact same size - do NOT use a smaller belt.

Smaller belts are needed on many OTHER vehicles when using underdrive pulleys, but NOT on the 1997 & newer F-150 - and that is why some people have said to use a smaller belt, because that is indeed the norm in most other vehicles - for example, that is typical on 1996 & earlier F-150's, in most GM & Mopar trucks, and in Mustangs, etc - but that is NOT required with our underdrive pulley set for the 1997 or newer V8 F-150, trust me - just use the same size Goodyear Gatorback belt.

Good luck!

 

I just installed a set of ASP pullies and belt was to long. Mine squeels, after inspection I could tell the belt was loose and indicator was hitting the stop. I put a shorter belt on and works fine. I looked in Dayco book and it would look like they changed some thing because they listed different belts for 2004 and 2005 on the new platform trucks.

I bougth my pullies from Mike a year ago for a 2003 F150 and took them off and put them on my new truck.

From the Dayco book
2005 VIN 5
PN # 5061025
2004 VIN 5
PN # 5061015

I installed PN # 5061010 and that put the indicator in the center of the tensioner pully. I don't know what they change because all of the idler pullies are the same part number.
Mike is right, I put pullies on all of my F150's and never had to change belts. There is some thing different about the 2005 F150 because I had to put a shorter belt on.

 

THanks for the info there mike. ANd no name, assuming we give ourselves a good smack upside the head, we'd now ask you what your current belts condition is. The belts do stretch over time. And Mike was right, I was basing my comment on needing a new belt on my Mustang experiences, as I often give lots of advice based on my mustang experiences, which has proved to be relatively useless many times here for the mod motors.

 

Hi KMK,

Thanks for your info regarding your 2005 - so far, we have not had to deal with that in *any* 1997 thru 2006 5.4 F-150 - not once have we needed to install a shorter-than-stock belt on vehicles where we installed the pulleys here. We always use the exact same size as the factory belt, but used the Goodyear Gatorback, which is a much higher quality belt in terms of it's grip on the pulleys than any other belt, Dayco included.

Now that having been said, the F-150 is indeed infamous for having some mid-year or during-the-same-production-year changes - for example, we get a couple of reports in 2002 4.6 F-150's of a tensioner change where the customer used a 1/2" shorter belt - but we've never seen that here to date.

Given the F-150 being rather famous (or infamous, I should say) for making mid-year changes in other areas, who knows, we may start to see some trucks that do indeed have a different belt length requirement - but it's *not* due to our pulleys - the crank pulley & dampener is smaller while the water pump pulley is larger, and the end results is that they require the same size belt as the factory - not once have we ever needed to change belt sizes when installing our pulleys, and we've done them on plenty of 1997-2006 trucks, including the 2005's & 2006's - in every case, we simply install a new Gatorback belt of the same size as the factory belt on each model year vehicle, and never had a problem.

One oddity we have seen is that historically, though the Expedition is built on the F-series platform, the 1997-2002 5.4 Expy has always taken a 1" shorter serpentine belt compared to the same 5.4 engine in the 1997-2003 F-150 - meaning in the 1997-2002 Expy's with 5.4's take a 98" serpentine belt while the F-150 1997-2003 5.4 takes a 99" belt length - go figure.

 

How much smaller is the crank pulley you include over the stock crank pulley? I'd like to figure a few %'s out. I need to install the pulley's I purchased from you, I haven't gotten around to it yet.

 

Josiah,

You will need to call us for Tech Support, as always - there are also a few other issues I want to speak with you about.

 

Actually have them installed atm, wasn't too difficult at all. Did it last night and was only about an hour or so of actual work.