In trying to track down my stumbly cold idle issues, I pulled the AAR today. Got it all cleaned up, and here's what the opening looks like at ambient (approx 92*F today):
I put 12 volts on it, and it closes completely within a couple of minutes. I put my voltmeter on the plug, and see 12 volts when cranking. I also get 12 volts across the plug with the engine on (that was a feat of acrobatics, BTW, with one hand holding the test probes in place while trying to block off the 2 ports at the same time ).
So, is this open enough when "cold"? Should I increase the opening a bit?
Side-rant: My F#$%ing AAR elbow is cracked...again...less than 2 years after replacement, and this was supposedly the "good" German elbow.
RTV'd the SOB for now.
AAR Diagnostics - 1978 Bus
- bretski
- Ellipsis-Meister
- Location: out of hibernation...for now
- Status: Offline
AAR Diagnostics - 1978 Bus
1978 Deluxe Westfalia - "Klaus"
"transcripts are overrated. hardware store receipts: those are useful." --skin daddio
"transcripts are overrated. hardware store receipts: those are useful." --skin daddio
- bretski
- Ellipsis-Meister
- Location: out of hibernation...for now
- Status: Offline
- bretski
- Ellipsis-Meister
- Location: out of hibernation...for now
- Status: Offline
Thanks, Don. There's no spec anywhere for how large the opening should actually be when cold. I'm moving on to the elbow today. I suppose that the cracks that were developing could give just enough vacuum leak to cause a problem.
Durocshark re-plumbed his, I remember, using some copper tubing. I'm probably going to try something similar. The elbows available today are absolute garbage, German or otherwise.
Durocshark re-plumbed his, I remember, using some copper tubing. I'm probably going to try something similar. The elbows available today are absolute garbage, German or otherwise.
1978 Deluxe Westfalia - "Klaus"
"transcripts are overrated. hardware store receipts: those are useful." --skin daddio
"transcripts are overrated. hardware store receipts: those are useful." --skin daddio
- vwlover77
- IAC Addict!
- Location: North Canton, Ohio
- Status: Offline
They were set at the factory. That's why the nut has sealing paint on it.
I replumbed my elbow using rubber heater hose and a nylon barbed-end 90 degree plumbing elbow from Home Depot.
I replumbed my elbow using rubber heater hose and a nylon barbed-end 90 degree plumbing elbow from Home Depot.
Don
---------------------------
78 Westy
71 Super Beetle Convertible Autostick
"When we let our compassion go, we let go of whatever claim we have to the divine." - Bruce Springsteen
---------------------------
78 Westy
71 Super Beetle Convertible Autostick
"When we let our compassion go, we let go of whatever claim we have to the divine." - Bruce Springsteen
- Ritter
- IAC Addict!
- Location: Sonoma County, CA
- Status: Offline
That looks good to me. More here if it helps:
viewforum.php?f=42&sid=c719f436c74b80d2ae51ca5539b4f8ba
viewforum.php?f=42&sid=c719f436c74b80d2ae51ca5539b4f8ba
1978 Westfalia 2.0 FI