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Viper01's Avatar
 
Join Date: Jul 2007
Location: Phoenix, AZ
Posts: 39
Sunday morning drive...

Hi all,

Took the 930 out for a nice Sunday morning drive. About 5 miles down the road I start smelling gas and immediately pull off the highway. Shut her down, get out and see gas dripping from under the rear of the car. Grab the fire extinguisher and wait a few minutes. I'm very lucky I didn't have a fire. I now need to diagnose the most likely causes and have been searching the forum for similar situations. Car is back home in the garage (flatbed). I'd really like your input on the best way to begin. The area around the airbox assembly behind the intercooler were fairly well soaked.

Thanks everyone.
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Bill
1986 930
Old 10-18-2009, 09:52 AM
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Turbo Hooligan
 
Join Date: Sep 2007
Location: Greensboro NC
Posts: 1,246
sounds like the diaphragm in your WUR went out. I had the exact same symptoms when my WUR gave up on me. gas smell, and a nice big gas leak running down the backside of the engine.
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All these guys do is drive too fast, work on cars, chase ******* and drink.. really no fun at all...
Old 10-18-2009, 09:58 AM
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Turbo Hooligan
 
Join Date: Sep 2007
Location: Greensboro NC
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Good news is that its the perfect excuse to upgrade to the Brian Leask Adj. WUR or the Digital WUR.
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All these guys do is drive too fast, work on cars, chase ******* and drink.. really no fun at all...
Old 10-18-2009, 09:59 AM
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Join Date: May 2005
Location: Los Angeles
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Garage
Old fuel lines?
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1987 Venetian Blue (really looks like grey) 930 Coupe
Old 10-18-2009, 10:19 AM
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OFF THE BOOST PIPE NOW...
 
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Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
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With a cold engine and outside, jump the relays to get the pumps working and look for the leak. Could be the WUR, old fuel lines as mentioned or a loose fitting.
Old 10-18-2009, 10:51 AM
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Thanks for all the great input so far guys. I've removed the intercooler and airbox assmbly and have been digging around looking for anything obvious. Lines look good so far, but that's not saying much. A930Rocket, could you please tell me how to jump the relays to get pressure. I'm quickly reaching my very limited mechanical limits.
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1986 930
Old 10-18-2009, 11:02 AM
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You have to jump two relays and if you jump the wrong pins you can melt wire insulation and burn things up under the relay panel before you realize it.

To make the pumps run while the engine is off can also turn the ignition on and remove the blue plug on the top back of the CIS air flow meter housing and the pumps will come on.
Might be a good idea to put some rags over the fuel lines and warm up regulator and fittings in case gas come spraying out while you are reaching back there.

If you have an assistant, remove the blue plug and then have them turn the ignition on while you watch the engine and fuel lines.
You can do that by yourself too.

Keep a fire extinguisher and ready to go garden hose nearby when working on this kind of stuff.
Old 10-18-2009, 12:09 PM
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Thanks JFairman! I'll give this a go later today and post what I've found.
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Bill
1986 930
Old 10-18-2009, 12:40 PM
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Update: I removed the blue plug as JFairman suggested while the car was outside and cooled off. Had a friend turn the ignition to get the pumps running and found the leak immediately. It's the hose that comes off the top of the accumulator. While I'm grateful it wasn't the wur, this hose disappears down into the back of the compartment to, I suppose, the fuel pump. Anybody have experience replacing this line and is it a DIY?

You guys are great, thanks very much for the help.
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Bill
1986 930
Old 10-18-2009, 01:41 PM
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I've never removed that line but it has crimped on fittings so you could remove it and take it to a hydraulic hose supply place and have them make up a new one using the fittings from your hose.

Or buy a new one.. removing and reinstalling it can be do it yourself.
Old 10-18-2009, 02:12 PM
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