I decided to install a gauge works as it should




added pucture car running

 

Looks low to me. Assuming you’re at near sea level and engine is at idle. Would think 15-20 would be more “normal”?

Just a thought.

Brian W.

 

that pic was with ignition swith on was going down you are correct i am around 14,15
thanks

 

You will find the reading is very low 15 in Hg compared to a less tuned car at twice theat figure.
This is why the brakes are so poor and feel soft. I fitted an electric vacuum pump and the brake teste readings went from 150 to 300 with a hard pedal.
Search my posts and its all documented its called "The Route to Good Brakes"

 

I decided to check was cropping up tours 20

Thanks

 

Plumbing photos ?

Z

 

there's a rubber groomer behind wiper to feed the line i tap in to a vacuum line.front passenger side SC BY the big Hex air bleeding valve

 

where and / or how did you come thru the firewall ?

Z

 

driver side behind the wiper you will see a rubber groomer make a small slice feed small thin rid it will show u0 by the footwell against the lower kick panel

 

JagWrangler's instructions for installing his RealGauge conversion includes details with photos on how to snake wires (or hoses) through the firewall: https://www.thejagwrangler.com/uploa...on_rev_1.1.pdf
I followed those when I installed my oil pressure gauge:

 

Firewall. .Yes that is a problem. You only have the live to take to the brake light relay in the Trunk. I drilled a small hole to the right ( car right ) and came out near the pedals. The RHD if totally different in the Servo area but you may get a wire through with the Hood release.