Running Rich

[buckweber]

I have been through the fuel injector manual and confirmed linkage settings. One odd item. Idle screw is totally backed out and motor idles. Most likely due to rich condition


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[buckweber]

WUR is the only real thing I haven’t messed with


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[buckweber]

Car ran write for about a week


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[ray_]

So the CS injector is still plumbed. Check it for leaks. What's the fuel pressure on the 3 series pump? Where's the timing set?

[buckweber]

Timing set to 26 degrees


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[buckweber]

Almost positive the injector isn’t leaking. Maybe I will cap it


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[ray_]

2 minutes ago, buckweber said:

Timing set to 26 degrees


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Great.

 

Good luck.

[Son of Marty]

yes check the fuel pressure running it should be 28-29 psi. It kinda sounds like the wur is stuck open and enriching the mixture.

[dlacey]

11 hours ago, buckweber said:

It does not appear to move. Not sure if it was up to temp when I stopped, Is there a hose or something between WUR and intake. 

 Yes, there is a hose at the bottom of the WUR which runs up the side of the block to the bottom of the plenum...difficult to see.

 

[buckweber]

Have WUR out of the car and cleaned it up. Does it require any lubrication? Is there a way to bench test it?


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[dlacey]

In a pan of hot water the 'piston' should extend outwards about 10-15mm

 

i don't know about lubrication...i guess yes, but no solid info

[irdave]

I didn't lube mine, but I definitely cleaned it up so it would slide smoothly.  And I made the initial adjustment off the car, just out of the pan of boiling water (up here we can barely get water to boil- so you do what you can...)

 

(You make a tool to unscrew the cap with the 2 pin holes to disassemble the WUR...  I put a little anti-seize on the threads to help it turn while under spring pressure for reassembly.)

[buckweber]

Thank you. I will give it a shot


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[buckweber]

Tested the WUR and it seems good


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[ray_]

Have you adjusted the throttle linkages?