930 Newbie with a quick question - cdi & gas smell

[Dcexige]

Picked up a 1987 930 silver coupe a little over a year ago and currently looking at getting the cdi box refurbished from hard start random kill and restart to finally no start.

Outside that the car always has decent smell of gas inside and lately more outside since the cdi went bad. In the car recorders no cdi rebuild to date but comments from other owners with same issues. Not sure if that smell is a symptom or coincidence or just a 930 thing?

Awesome forum by the way!

[flightlead404]

don't think gas smell is related to cdi issues unless you're cranking and cranking and cranking

suspect aging fuel lines more of an issue, I'd inspect from one end to the other

[MTN930]

Welcome to the forum. To your post:

1. Does the gas smell occur all the time now? Or when the gas tank is at a certain level?

2. Check your gas cap and fuel tank vent lines to see if any of those are improperly venting or leaking.

3. CDI resto: Bob Ashlock does a great job with that (https://ashlocktech.com), he did both of my CDIs (twin plug) and the results were terrific.

Good luck

[Tonger]

Originally Posted by flightlead404

don't think gas smell is related to cdi issues unless you're cranking and cranking and cranking

suspect aging fuel lines more of an issue, I'd inspect from one end to the other

+1 As FL404 said, these lines are getting really old.

My '86 had leaking fuel lines in the back near the fuel accumulator so we changed all of them. There was raw fuel coming out like a gasoline lawn sprinkler and ultimately landing on the header.

Then I had a leak in front from corroded banjo and cap fittings on the high pressure line on the front fuel pump. You'll have to remove the front undercar cover by the steering rack to see this.

Even if not leaking now, it would be a good idea to change out your fuel lines anyway for peace of mind - it's also good to carry a fire extinguisher.

[jomama]

+1 on the fire extinguisher change your fuel lines

[Vlagana]

my 930 developed a huge fuel leak over the weekend. the line looked like it was slashed with a razor blade. old lines fail!. I'm a +1 for changing them!

[David]

Another strong recommendation to change your fuel lines. I changed my tunnel lines with OEM lines 20 years ago so I'm about due again. I have braided stainless hose on the EFI system and I just changed them all last year after almost 20 years. Nothing's good for much over 20 years these days.

[Dcexige]

There is faint gas small inside the car all the time. Appreciate the direction on the CDI and fuel lines from you all. It makes sense given the age and was not thinking all lines but like a gasket or something.

Better safe than sorry and fuel lines look to be original since no record I could find. Any ideas on what that might cost? Been doing some repairs myself but that I would leave to a tech. Thanks again to everyone on the feedback and direction!

[Bucketlist]

Contact Boxtergt for all of your fuel line related needs:

Looking for a part source for CIS Injection Lines

[krasuskyp]

like Steve suggests ^above^ contact Len Cummings (while he's still at it - get em while ya can!) and have him make you up a set of supply & return lines full front-to-back

DIY isn't all too terrible if you've got a lift, tho believe I did mine with the azz up. Undo the lines, tie the new front end to the old back end then pull the new ones through as you remove the old ones. Works a treat! Then just reconnect the ends.

DO NOT not tend to these, regardless if they're not currently leaking. They will and these CAN / WILL catch fire.

Also remedy the two pumps sharing a fuse and run separate fuses. Look up shadetree's DIY - only matter of time till the wire starts melting at the fuse block as the pump resistance increases with age, and you start blowing fuses or worse. Unfun.

[Dcexige]

Thanks again for words of caution and the connection to Len. Already shot him a note and hopefully he is still cranking these out. Makes sense to remove risk and looks like between cdi and lines I can get a hopefully dependable driver back online. Love driving these things!

[slow&rusty]

Here are pictures of Bob Ashlok's rebuilt CDI that I recently installed in my car: