Home 
> Jensen Healey & Jensen GT Tech > Carburetors > no start - getting air, fuel and spark......carbs?

 Moderated by: Greg Fletcher  
AuthorPost
flatlanderep
Member


Joined: 06-24-2006
Location: Charlotte, North Carolina USA
Posts: 61
Status: 
Offline
1973 JH with strombergs. It sat during the huge cold snap we had here in the south and now will not start. I've checked for spark and its good. I've checked for fuel and its good. I've check for air and its good. Put in a new battery too.
I'm stumped. Is a carb adjustment in order? I just don't understand how a carb would get out of whack just because it sat for a week.
I'm not sure what else to do.
Please help me get it running.

Sander
Member


Joined: 03-15-2005
Location: Peachtree Corners, Georgia USA
Posts: 62
Status: 
Offline
Spark ... fuel ...

Have you pulled the spark plugs?  They may be fouled.

Brett Gibson JH5 20497
Member
 

Joined: 03-17-2005
Location: Hilton, New York USA
Posts: 713
Status: 
Offline
Not sure just how you checked spark and fuel, but lets say you have 2 to 3 lb's of fuel pressure at the carb's, and you have spark at each plug, my next thought would be is it all arriving on time, could you have skipped a tooth on the timing belt. Could the cold have created condensation that froze and is sapping the spark off, could the gas line be partially frozen, or water that is frozen in the float bowls.

I wouldn't go adjusting the carbs right now if they were working fine before, but I'd advise taking a look at the basic timing, crank and cams, then draining the float bowls.

So many possibilities, let us know what you find.

Brett

Sander, time for you to go to the Nationals agian isn't it ???

flatlanderep
Member


Joined: 06-24-2006
Location: Charlotte, North Carolina USA
Posts: 61
Status: 
Offline
i guess that was my next question. how do you drain the floats bowls on the stroms?

Brett Gibson JH5 20497
Member
 

Joined: 03-17-2005
Location: Hilton, New York USA
Posts: 713
Status: 
Offline
flatlanderep wrote: i guess that was my next question. how do you drain the floats bowls on the stroms?


Pretty simple really, just feel under each carb and you should detect a round brass plug in the middle of each, 3/4" dia. its only held in by a O-ring, so just wiggle it while pulling down and it should come out, if it's a bit stuck use a screw driver to wedge it  but be careful the plug housing is actually plastic. If you should bust it most Brit place's have new ones. If you can, replace the o-ring with a new one, or at least smear it with a gasoline proof gasket compound when putting back in.

Brett

Circmand
Member
 

Joined: 01-23-2008
Location: Bullhead City, Arizona USA
Posts: 18
Status: 
Offline
now you can be sure you have an authentic british sports car

Steve Jarvis
Member
 

Joined: 10-28-2006
Location: Mississauga, Ontario Canada
Posts: 51
Status: 
Offline
I just replaced it on the front carb as it was leaking. I think you need to remove the bowl and press from the inside to remove the plug safely. There are four small tabs on the plastic that required some coaxing to get out.



UltraBB 1.172 Copyright © 2007-2011 Data 1 Systems