View unanswered posts | View active topics It is currently Mon Aug 21, 2017 1:34 pm

Reply to topic  [ 3 posts ] 
 It's always something 
Author Message

Joined: Tue Aug 23, 2016 12:23 am
Posts: 66
I've been driving the cobra quite a bit lately. It's "pretty close" to a great tune, but since the weather is good, I haven't been tuning - just driving. Took it to the track and had a blast on my birthday.

Anyway, today I was driving down the road in punched it for about three seconds. It pulled hard until I let off. I few seconds later it was running rough. A glance at the WBO2 showed it was at 10:1.

I pulled over and then it died. At first I thought my fuel pump died - it did this to me once before. The secondaries had fuel but I couldn't see a meniscus thru the primaries' sight window. But I could hear the pump running. After a bit I looked down the throat of the carb and there was fuel puddled on the throttle blades! It was dropping out of the boosters even with the motor off!

I opened the throttles (with the resultant hiss as the fuel hit the hit manifold - I had the extinguisher ready) and was able to start the car with the throttles at WOT to clear the flooded condition. It immediately flooded again and died and fuel puddled back up on the throttle blades.

I was able to get home by turning off the fuel pump with the dash kill switch and driving at low speed until the car started to miss as the bowls emptied, then flipping the pump back on for three seconds to filll the bowls, then killing the pump again.

About 20 minutes later, with the car finally back in the garage, I took out the needle and seat. I didn't see any garbage so maybe the float it stuck. I didn't have time to take off the bowl - I may get to that tomorrow.

It's always something...

Tue May 30, 2017 8:02 pm

Joined: Sat Aug 17, 2013 8:59 am
Posts: 130
Like they say if it's got tits or wheels it'll be a problem.

Wed May 31, 2017 4:55 pm
Site Admin

Joined: Fri Feb 08, 2013 2:37 pm
Posts: 1744
It seems like constructed cars have more trouble with debris in the fuel system, probably because there is more opportunity for crud to get in the system during construction.

Wed May 31, 2017 9:40 pm
Display posts from previous:  Sort by  
Reply to topic   [ 3 posts ] 

Who is online

Users browsing this forum: Steve439 and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
Designed by ST Software for PTF.