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LIRS6 LIRS6 is offline
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Join Date: Aug 2017
Location: Long Island
Posts: 379
Garage
Quote:
Originally Posted by LIRS6 View Post

The car :

'79 SC (USA)

Retested pressures using Tony's loaner WUR

Original 3.0 with WUR ending 045. Tony's WUR

Temp : 74 deaf. 66 degf / 18.9 C

WUR ohms : 26.3

Test results :

FP only - engine not running

System pressure: 4.9 bar. 4.8 Bar

Cold pressure : 2.1 bar. 1.7 Bar

WUR Power connected

July Sept 9 Sept 30

30 secs : 2.2 bar / 31.9 psi. 2.55 Bar 1.8 Bar/ 26.83 psi
60 secs : 2.45 bar / 35.5 psi. . 2.6 Bar 2.1 Bar / 30.46 psi
90 secs : 2.7 bar / 39.2 psi. 2.9 Bar 2.35 Bar / 34.08 psi
120 secs : 2.8 bar / 40.6 psi. 3.0 Bar 2.55 Bar / 36.26 psi
150 secs : 2.95 bar / 42.9 psi. 3.2 Bar 2.6 Bar / 37.71 psi
180 secs : 3.03 bar / 43.9 psi. 3.3 Bar 2.6 Bar / 37.71 psi
210 secs : 3.1 bar / 44.97 psi. 3.35 2.6 Bar / 37.71 psi
240 secs : 3.1 bar / 44.97 psi. 3.4 Bar 2.6 Bar / 37.71 psi
270 secs : 3.13 bar / 45.5 psi
300 secs : 3.18 bar / 46.12 psi


Residual pressure :

1 min : 2.3 bar. 1.6 Bar / 23.21 psi
5 mins: 1.8 bar. 1.4 Bar / 20.31 psi
15 mins : 1.55 bar. 1.2 Bar / 17.40 psi
30 mins : 1.4 bar. 1.0 Bar / 14.5 psi
60 mins : 1.2 bar. 0 Bar / 0 psi

- WUR holds vacuum - confirmed. confirmed
- Vacuum at line going into the WUR - confirmed
I then started the engine. I thought a friend was recording, but apparently he failed miserably to press "start." From what I saw, it first showed about 1.8-1.9 Bar, then jumped up to about 2.6 Bar (TTY), then over a min or two increased pressure to about 3.3 Bar.

Turned engine off. Tried to re-start, would not catch. Turned up (CCW) idle screw a bit, tried again and it coughed but started.

Letting it sit now.

Note: edited in Blue font to add data from 9/9 - shows the huge difference my WUR vs. Tony's calibrated WUR tested 9/30 Red font

Any thoughts/comments?

Jason
__________________
'79 911SC Targa

Last edited by LIRS6; 10-03-2018 at 06:12 AM.. Reason: Up-dated data to show a 9/9 pressure test for comaprison
Old 09-30-2018, 10:56 AM
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