If you want an Underdrive Pulley, Read First!

This is the place to ask questions about your engine components like cams, valves, pistons… just anything that is generally "engine" specific. This also includes questions about exhaust systems such as exhaust manifolds, piping size, mufflers, ect...
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LionheartedSXT
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Post by LionheartedSXT » Wed Sep 10, 2008 12:19 am

did this guide help you at all? which UDP?
-Chad
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LionheartedSXT
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Post by LionheartedSXT » Thu Sep 18, 2008 3:42 am

Update: Finally installed the 490 gates belt, it really was a tight fit but finally got it on, Still hearing a decent amount of squeaking coming from the belt so I'm hoping it goes away after belt has been broken in...ugh I can't escape it!!!
-Chad
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fixitmattman
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Post by fixitmattman » Thu Sep 18, 2008 12:27 pm

Belt probably isn't the problem then. It should be dead silent. Did you check any of the bearings on the driveline/tensioner.
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LionheartedSXT
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Post by LionheartedSXT » Thu Sep 18, 2008 12:37 pm

The tensioner you have to pull forward to get the belt loose right? No I didn't check those bearings, but I was looking right at in when I put the belt in and I don't recall seeing anything out of the ordinary...what if it is the entire tensioner that is bad? which I don't see what could cause it to go bad so fast...
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LionheartedSXT
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Post by LionheartedSXT » Sat Sep 27, 2008 11:12 pm

no idea what to do...
-Chad
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NickKo
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Post by NickKo » Sun Sep 28, 2008 10:29 pm

LionheartedSXT wrote:The tensioner you have to pull forward to get the belt loose right? No I didn't check those bearings, but I was looking right at in when I put the belt in and I don't recall seeing anything out of the ordinary...what if it is the entire tensioner that is bad? which I don't see what could cause it to go bad so fast...
So it is still squeaking, then ?

*If* it is your tensioner (it sounds like it is), be ready to have a PITA to replace it ....
You may just need a new tensioner wheel / bearing assembly, not the whole thing..... You should be able to get one from a parts store.

I have no idea if the tensioner wheel can be replaced on the engine, or if the whole assembly has to come off.....

- Nick
-1998 2-dr SOHC MTX= 57mm TB; Maddog STS
-2000 Ply.LX w/MTX = Maddog STS; CAI; 2.5 exh.; 60mm T/B
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-2001 ACR w/SRT T/B bored out to 55mm

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LionheartedSXT
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Post by LionheartedSXT » Wed Oct 01, 2008 12:04 am

So how would I check to know if the tensioner wheel is bad or need to be replaced?
-Chad
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Post by NickKo » Sat Oct 04, 2008 8:03 pm

LionheartedSXT wrote:So how would I check to know if the tensioner wheel is bad or need to be replaced?
Good question, I'd like to know the answer, too. :lol:

I would replace mine, if:

1). It has play in it. (bearing failure pending)
2). It has locked up. (bearing failure)
3). Squeaking (this may be a non-issue, but it may indicate bearing lubrication problems)

- Nick
-1998 2-dr SOHC MTX= 57mm TB; Maddog STS
-2000 Ply.LX w/MTX = Maddog STS; CAI; 2.5 exh.; 60mm T/B
-2001 ATX w/Syked PCM + Magnum header
-2001 ACR w/SRT T/B bored out to 55mm

Official "I'm Going to Drive My Neon till it Dies" Club #000009

occasional demons
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Post by occasional demons » Sun Oct 05, 2008 12:39 am

Bill
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Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

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1999 neon coupe 2.4 swap
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LionheartedSXT
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Post by LionheartedSXT » Mon Oct 06, 2008 12:30 am

So then the tensioner pulley maybe the culprit of this noise? I will have to get someone to check it out for me...Thanks All...
-Chad
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kstevens91
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Post by kstevens91 » Tue Oct 07, 2008 11:13 am

i have these but have no idea what kind since they were on there when i got the car haha

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LionheartedSXT
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Post by LionheartedSXT » Fri Nov 14, 2008 5:56 pm

Well come to find out, all that was needed was to adjust and tighten my alternator a little bit. The noise is gone. :shock:

So much better than replacing a tensioner, so the moral of this prolonged story is, some modifications done to your car will piss you off in the long run. Ah who cares, do them anyway, its a good learning experience, which is (you will learn to hate life shortly after realizing you have been modding a neon this whole time) :rofl:
-Chad
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occasional demons
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Post by occasional demons » Fri Nov 14, 2008 6:59 pm

Or run it without the damn PS belt on to see if it is actually making the f*#@ckin' noise. :rofl:

:owned: by an alternator belt. Eh, there's worse things....


Like forgetting to tighten the cam bolt. Almost done it.
Bill
dblsg wrote:ya'll a bunch of post whores
Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
Help support 2GN!

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LionheartedSXT
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Post by LionheartedSXT » Mon Nov 17, 2008 6:56 pm

occasional demons wrote:Or run it without the damn PS belt on to see if it is actually making the f*#@ckin' noise. :rofl:

:owned: by an alternator belt. Eh, there's worse things....


Like forgetting to tighten the cam bolt. Almost done it.
Yea I tried that, thats is how I figured it was not the ps/ac belt.
Yea i'm glad it wasn't nothing too serious but I am mad that it was something so simple as just tightening a couple bolts. oh well, lesson learned, onto more modding :twisted:
-Chad
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Boyscoutgonebad
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Post by Boyscoutgonebad » Sun Sep 06, 2009 6:32 pm

figured I'd add my .02 cents
Just got around to installing my MPx UDP that has been serving as a paper weight for a couple months.

Install was a breeze, Used the Auto zone Puller to get the old pulley off. Put the new pulley in the oven for 25 minutes. went on with no problem.

I used the Auto zone belts as well. The 305K4 and the 500K4 have been on for a week now with no problems.

Thanks for all the help.
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