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Old 09-22-2010, 08:36 AM   #1
bguild
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found a weird EBAY TACH... mech and only to 4k

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

I thought I would post this in case someone needs it.. I actually bid and then realized it was a mechanical tach that only goes to 4k.. I dont know much about them but thought it could be rare or someone might want to snag it.
If you have any info on it please post.. like what its out of.
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Old 09-22-2010, 08:39 AM   #2
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Re: found a weird EBAY TACH... mech and only to 4k

Cable drive diesel tach from a bigger truck.
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Old 09-22-2010, 08:42 AM   #3
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Re: found a weird EBAY TACH... mech and only to 4k

That is what another board member was thinking as well. He almost caught me thinking it was a 1/2 ton truck tach. Then I started looking closer.
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Old 09-22-2010, 08:43 AM   #4
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Re: found a weird EBAY TACH... mech and only to 4k

pretty bad feedback // i wouldnt consider anything from that seller
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Old 09-22-2010, 09:29 AM   #5
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Re: found a weird EBAY TACH... mech and only to 4k

Yes I cancelled my bid on it..
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Old 09-22-2010, 10:06 AM   #6
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Re: found a weird EBAY TACH... mech and only to 4k

Being from a bigger truck, wouldn't it also have a vacuum gauge?
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Old 09-22-2010, 11:43 AM   #7
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Lightbulb Re: found a weird EBAY TACH... mech and only to 4k

Quote:
Originally Posted by nyncompute View Post
Being from a bigger truck, wouldn't it also have a vacuum gauge?

Coming from a Diesel powered truck, no. Diesel engines do not produce a manuifold vacuum signal like a gasoline engine does. Now, if the diesel truck were equipped with a separate vacuum pump, then yes.
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Old 09-22-2010, 01:53 PM   #8
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Re: found a weird EBAY TACH... mech and only to 4k

it's from a big truck with a "twin-six". very low rpm.
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Old 09-22-2010, 01:57 PM   #9
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Re: found a weird EBAY TACH... mech and only to 4k

here ya go.http://www.6066gmcguy.org/TwinSix.htm
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Old 09-22-2010, 02:17 PM   #10
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Re: found a weird EBAY TACH... mech and only to 4k

so you are saying if i bought this tach I would have bought a twin 6 for my C-10 LOL.. maybe someone should do that.
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Old 09-22-2010, 02:18 PM   #11
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Re: found a weird EBAY TACH... mech and only to 4k

so would this work on my 6.5 diesel project?
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Old 09-22-2010, 03:42 PM   #12
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Re: found a weird EBAY TACH... mech and only to 4k

This would work on your 6.5 project if you had a way to hook up a cable driven tach to the 6.5.
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Last edited by Dieselwrencher; 09-22-2010 at 03:43 PM.
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Old 09-22-2010, 04:17 PM   #13
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Re: found a weird EBAY TACH... mech and only to 4k

Quote:
Originally Posted by Dieselwrencher View Post
This would work on your 6.5 project if you had a way to hook up a cable driven tach to the 6.5.
lol i am looking at my options for a tach for my 6.5 but i really dont know how a cable driven tach works..could you help a noob out lol!
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Old 09-22-2010, 04:21 PM   #14
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Re: found a weird EBAY TACH... mech and only to 4k

They usually have a provision with a drive gear on the engine somewhere. It usually has a area that has thread near the injection pump that will drive the tach.
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Old 09-22-2010, 04:23 PM   #15
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Re: found a weird EBAY TACH... mech and only to 4k

hmmm sounds like a lot of trouble. lol..
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Old 09-22-2010, 04:24 PM   #16
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Re: found a weird EBAY TACH... mech and only to 4k

did anyone get this from the board?
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Old 09-22-2010, 04:35 PM   #17
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Re: found a weird EBAY TACH... mech and only to 4k

$280.89 plus shipping?! Somebody sure wanted it!
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Old 09-22-2010, 04:59 PM   #18
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Re: found a weird EBAY TACH... mech and only to 4k

yeah I know.. that seemed really high for a as-is auction with a guy with bad feedback.. Still though it probably is a harder to find item.
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Old 09-22-2010, 05:22 PM   #19
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Re: found a weird EBAY TACH... mech and only to 4k

Quote:
Originally Posted by nyncompute View Post
Being from a bigger truck, wouldn't it also have a vacuum gauge?
How about an air pressure gauge for the brakes?

Ray

Last edited by raycow; 09-22-2010 at 05:28 PM.
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Old 09-22-2010, 11:37 PM   #20
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Re: found a weird EBAY TACH... mech and only to 4k

If you look close it has a gauge in the dead hole but on my laptop I can't make it out, most likely air pressure.
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Old 09-22-2010, 11:56 PM   #21
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Re: found a weird EBAY TACH... mech and only to 4k

That cluster looks like it was either: from a truck with a fire, or just plain dirty.
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Old 09-23-2010, 01:50 AM   #22
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Re: found a weird EBAY TACH... mech and only to 4k

darn, I could use that on my toroflow to replace my existing mechanical gauge that doesn't match.
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