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Pacific Designs chain tensioners
The 2.4 MFI motor I have for sale has a set of these installed. Has anyone heard of these? Have any info?
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10-26-2009, 09:42 PM
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Almost Banned Once
Join Date: Feb 2009
Location: Adelaide South Australia
Posts: 38,347
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Never heard of them... Up for more views.
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- Peter |
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10-27-2009, 03:19 AM
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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I have a set and could post pics later. It's really meant as a installation tool (cam/chain set up) and it's use is frowned upon by many.
That said there is a very high end restorer I know who said he puts them in every engine he builds. He said to me they all (tensioner's) suck.
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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10-27-2009, 05:44 AM
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Registered
Join Date: May 2004
Location: Boulder, Colorado
Posts: 7,275
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Are these just mechanical tensioners? A thick aluminum block, with mounting holes in appropriate places, and with a bolt and lock nut which presses against the idler arm to do one time adjustment?
If so, in general I've not heard anyone say they are a good idea. By definition, they will provide the proper amount of tension only at one operating temperature. If that is set as hot, then there will be too much tension when starting up and warming up. If less than that, it will be too loose during normal running. Sometimes pro racers have used them, on the theory that 1) parts in pro race motors get replaced frequently, so wear is not so much of an issue, and 2) the disadvantages of having a tensioner fail during a race outweigh extra noise and wear. Walt Fricke |
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10-27-2009, 04:04 PM
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Funny I replied to this thread not only because I have a set, but more because I just got an engine for my 914 and I'm researching it.
I just open my covers today and looky what I see. 
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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10-27-2009, 05:25 PM
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Porsha
Before
"Outside of barn find "
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