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Old 12-01-2011, 09:59 PM   #1 (permalink)
60+ mpg at posted speeds
 
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good vacuum pumps?

I need to buy a hand-held vacuum pump ASAP for some diagnostic work on my MAP sensor to resolve ongoing running problems. What do you own? What would you recommend?


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Black and Green will be rebuilt over decades as parts die--until it becomes a different car. Goal is only 60-70 mpg at posted speeds. I'm not trying for highest possible mileage.

Calculators: standard deviation, Ohms Law, & drag HP losses.
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Old 12-02-2011, 05:57 AM   #2 (permalink)
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Maybe you have something lying around that can be repurposed.

(The amount of vacuum can be approximated from piston position)
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File Type: jpg pump.jpg (99.3 KB, 8 views)
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Old 12-02-2011, 07:42 AM   #3 (permalink)
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I have a hand pump mityvac, works great for bleeding brakes, and testing whatever. It'll pressurize or draw a vacuum and has a gauge that goes both ways.
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California98Civic (12-02-2011)
Old 12-02-2011, 10:03 AM   #4 (permalink)
60+ mpg at posted speeds
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Civic DX Coupe
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Quote:
Originally Posted by Daox View Post
I have a hand pump mityvac, works great for bleeding brakes, and testing whatever. It'll pressurize or draw a vacuum and has a gauge that goes both ways.
That's a good looking tool: link. I'll use it as reference when I drop in on the stores today. Thanks. Any warnings about crappy brands?
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Black and Green will be rebuilt over decades as parts die--until it becomes a different car. Goal is only 60-70 mpg at posted speeds. I'm not trying for highest possible mileage.

Calculators: standard deviation, Ohms Law, & drag HP losses.
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Old 12-02-2011, 10:52 AM   #5 (permalink)
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Quote:
Originally Posted by California98Civic View Post
That's a good looking tool: link. I'll use it as reference when I drop in on the stores today. Thanks. Any warnings about crappy brands?
I have a MityVac also. There may be knock-offs at HF that I would stay away from. I thought HF might even sell the original as well.
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California98Civic (12-02-2011)
Old 12-02-2011, 12:30 PM   #6 (permalink)
60+ mpg at posted speeds
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 1,190

Black and Green - '98 Civic DX Coupe
Team Honda
90 day: 64.83 mpg (US)
Thanks: 384
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Quote:
Originally Posted by jkv357 View Post
I have a MityVac also. There may be knock-offs at HF that I would stay away from. I thought HF might even sell the original as well.
Just bought the MityVac at Pep Boys for $32 (tax included). It was the only one they carried but it felt good to be confident of the purchase as I made it. Thanks.


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Black and Green will be rebuilt over decades as parts die--until it becomes a different car. Goal is only 60-70 mpg at posted speeds. I'm not trying for highest possible mileage.

Calculators: standard deviation, Ohms Law, & drag HP losses.
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