Installing Vacuum Gauge

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mollythemoggie
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Installing Vacuum Gauge

Post by mollythemoggie »

Hi guys,
I was just wondering how i'd install a vacuum gauge? would i remove the bolt at the back of my manifold and hook it into that? or is there somewhere near the brake booster? sorry i've never done this before! any pics would be awesome!
Thanks,.
Tom
simmitc
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Re: Installing Vacuum Gauge

Post by simmitc »

If you have a standard manifold then you need to remove it from the engine and then drill and tap a hole to suit the nozzle that should come with the gauge. Essential to remove the manifold in order to avoid swarf dropping into the engine. If your manifold has been previously tapped and then a bolt inserted, it's fine to use that - as long as the thread matches your adapter. Make sure that the rubber hose is routed straight up and away from the hot manifold!
mollythemoggie
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Re: Installing Vacuum Gauge

Post by mollythemoggie »

Hi Simmitc,
the back of the manifold has a hole in it with a plug done by the previous owner.. we used it to tune the car on a vacuum gauge.. but i was wondering if that was right for running one in the car itself..

Cheers,
Tom
bmcecosse
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Re: Installing Vacuum Gauge

Post by bmcecosse »

Big waste of time in my view - you can't 'tune' the car with a vacuum gauge! Oh yes - you can make the readings go up and down, but they are nothing to do with 'tuning'! :roll:
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Neil MG
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Re: Installing Vacuum Gauge

Post by Neil MG »

I guess Molly is getting a supercharger! :lol:
1956 Morris Minor Series II
1959 MGA 1600 Roadster
1966 Jaguar Mk2 3.8 MOD
bmcecosse
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Re: Installing Vacuum Gauge

Post by bmcecosse »

Would need a pressure gauge then!
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M25VAN
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Re: Installing Vacuum Gauge

Post by M25VAN »

If you don't want to do any drilling/tapping you could use a manifold adapter like those shown here.....
http://www.speedograph-richfield.com/ht ... lines.html
simmitc
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Re: Installing Vacuum Gauge

Post by simmitc »

Brilliant idea :D
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