Vacuum gauge installation 500hp carb

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01-19-2013 | 02:04 PM

#11

the deep

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From: Raystown Lake , Pa.

Quote:

Originally Posted by speedfever

I bought the boat last fall. At one time in its life it had blower motors and it had fuel pressure and vacuum/boost gauges that were left in the console but are not hooked up. I want to hook these gauges up so everything works.

I like it when they read on the BOOST side !

01-19-2013 | 02:05 PM

#12

speedfever

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From: Forest, Va

Quote:

Originally Posted by MILD THUNDER

I may have some fuel psi electric senders available, might go mechanical on my fuel psi.

My fuel pressure gauges are Gaffrig 0-15 psi.

01-19-2013 | 02:05 PM

#13

FIXX

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From: Between A Womans Leggs in IL

if its a true hp500 use the port behind the carberator thats threaded into the manifold..

01-19-2013 | 02:05 PM

#14

speedfever

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From: Forest, Va

Quote:

Originally Posted by the deep

I like it when they read on the BOOST side !

That would be nice........lol

01-19-2013 | 02:06 PM

#15

MILD THUNDER

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From: chicago

Quote:

Originally Posted by speedfever

My fuel pressure gauges are Gaffrig 0-15 psi.

mine too

01-19-2013 | 02:10 PM

#16

the deep

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From: Raystown Lake , Pa.

Quote:

Originally Posted by mrfixxall

if its a true hp500 use the port behind the carberator thats threaded into the manifold..

That's the one used for the PCV valve bro . The one on the front side has a plug in it .

01-19-2013 | 02:29 PM

#17

speedfever

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From: Forest, Va

I originally posted this question at 2:30 pm today. By 3:00, I have got a bunch of replies to help me with this. This is why this is such a great website !!!!!! Thanks everyone for the replies. It looks like I have several options to check out. I will post what I find.

01-20-2013 | 12:30 PM

#18

speedfever

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From: Forest, Va

Quote:

Originally Posted by the deep

At the very top of the intake manifold in the front there is a plug , pull it out and screw in the proper size nipple . If you use the one on the carb make sure it is located below the throttle plates . Why do you want to measure vacuum ?

I found this plug. It is right under the baseplate at the front of the carb. 3/8 npt brass plug. This is the easy fix that I am looking for to hook the gauges up. I found the brass fitting that I need at Lowes.

Thanks for the tip
jeff

01-22-2013 | 06:18 AM

#19

JoCo32

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From: Willow Spring NC

I have the exact same boat and setup. Fountain used the port under the front of the carburetor baseplate. Mine had 1/8" clear plastic tubing running to the guages. I removed it all so if you need anything let me know.