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 Post subject: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Wed Jan 26, 2011 10:24 pm 
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Neon Enthusiast
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Location: Lansing, MI
Is there a benefit from one or the other?? I'm getting ready to put my 2.4 in my car and have both setups. I wasn't sure which is better to go with and what peoples past experiences with them are. I searched it and didn't come up with anything. So help me out here!

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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Thu Jan 27, 2011 4:51 am 
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Which mechanical tensioner? Old plastic centered one, or Litens/SRT/PT style one?

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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Thu Jan 27, 2011 10:52 am 
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Old plastic one.

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96' Base Model with a 2.4 swap. (Summer Toy): http://forums.neons.org/viewtopic.php?f=51&t=380437

96' Base Model Sedan. SOLD

99' Black R/T Coupe. Bone stock DD

01' Black R/T Project in progress.. http://forums.neons.org/viewtopic.php?f=51&t=393513&p=3345128#p3345128

9 Neons and counting!!


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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Thu Jan 27, 2011 12:47 pm 
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P.O.S. Run the hydraulic then... but you have to have the right oil pump for it.

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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Thu Jan 27, 2011 5:36 pm 
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Is there any reason why you wouldn't change the mechanical tensioner on the Stratus bracket with a new one? Like this...http://cgi.ebay.ca/TIMING-BELT-TENSIONER-DODGE-STRATUS-96-97-98-99-00-/370442104124?pt=Motors_Car_Truck_Parts_Accessories&hash=item564011ed3c

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xxwhiteneonxx wrote:
fyi i paid 900$ shipped for my brand new 20g kit and it was the full thing plus more.


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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Thu Jan 27, 2011 7:47 pm 
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No actual experience with them, I hesitate to respond... but being as the SRT tensioner isn't much more, I would (myself) stick with it as a known...

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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Sat Mar 05, 2011 6:12 pm 
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the stock 2.4 mechanical has the same part # as the srt-4 even chryslers parts number


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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Tue Mar 08, 2011 6:38 am 
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dodgedude98 wrote:
the stock 2.4 mechanical has the same part # as the srt-4 even chryslers parts number


thats because the old design is no more. if you go to autostoned or one of the other parts houses and ask for an SRT-4 tensioner they will give you a tensioner pulley/bearing that works on the old milled tensioner brackets from the cloud cars and supposedly fits an SRT bracket too. since i have only seen srt tensioners come with the bracket attatched, i cant confirm that it will fit.

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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Thu Mar 17, 2011 9:29 pm 
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Location: Rockford, il
on my 2001 ACR i experienced two timing belt failures one at 60,XXX with the original hydraulic tensioner and again at 90,XXX. Each time i replaced the hydraulic unit with a new one from mopar. It was not until the premature failur of a gates racing timing belt that i began to suspect the tensioner. After the second failure I used a stock belt and the same tensioner.

It turns out my friend has an 2nd gen ACR (2002) similar to mine and we compared timing belt tension by use of a gates v belt tensioner. ( i know its not the most accurate but this is were things got screwy) We found that the Hydraulic tensioner apllied more than three times the force of the mechanical.)

i figured it would be a good coparison both 2nd gen ACRs excpet 2001 had hydraulic while 2001 had Mechanical.

Could it be that the hydraulic unit provides too much force?
Either way i replaced the hydraulic unit with a mech now.
HOWEVER!!!!!!

1.) his timing belt was replaced 20,XXX before test.
2.) method of test allowed for alot of error


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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Fri Mar 18, 2011 1:12 am 
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The oil pumps are different between the hydraulic and mechanical tensioner? I haven't been able to find out whether the tensioners are different from the 2.0 and 2.4....

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-Jacob

96' Base Model with a 2.4 swap. (Summer Toy): http://forums.neons.org/viewtopic.php?f=51&t=380437

96' Base Model Sedan. SOLD

99' Black R/T Coupe. Bone stock DD

01' Black R/T Project in progress.. http://forums.neons.org/viewtopic.php?f=51&t=393513&p=3345128#p3345128

9 Neons and counting!!


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 Post subject: Re: Hydraulic vs Mechanical timing belt tensioner
PostPosted: Fri Mar 18, 2011 1:16 am 
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Yes, the oil pumps are different. I'd have to look up the #'s on the hydraulic units to see if they are the same, but I'm sure the pulley bracket and pulley are different between the 2.0 and 2.4. Remember a "hydraulic tensioner" is 2 pieces... actually 3, counting the bearing/pulley.

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