I have checked the dashpot oil. I have tried motor oil.
Now I am using the dashpot oil that Moss sells. I have check
the gasket on the new filter. I am currently running the old filter
setup.
I adjusted the A/F ratio last night with the old filter on it and I had
to
lean it out about 1/2 a turn!! It would be nice to figure this one out!
I think that I may need a new needle profile. Any suggestions?
Has anyone noticed that the new needles that you get from Moss
are not as nice as the old ones? I found that I do not get as much
vertical adjustment with the new needle. With the old needle I get
about
4.5 turns with the new needle I get about 2.5 turns.
Dave C
>----------
>From: Childs, David
>Sent: Wednesday, July 23, 1997 3:00 PM
>To: 'Triumphs@autox.team.net'
>Subject: ZS air filter mystery
>
>First, I must thank the List for all the input I have received
>over the past few months.
>
>Second, I will give you another puzzler.
>I just replaced my stock air filter on my 79 Spit (ZS carb). Now
>the car will not run properly above 3000 RPMs. Here is what
>I did trying to understand the problem. I checked float to jet
>clearance
>as best I could. That was OK. The I installed a new jet (the one with
>the
>ball barring). No change. I have adjusted the A/F ratio as best I can,
>maximizing idle speed. Here is the kicker. It will run fine at 5000
>RPMs
>when the car is not moving. As soon as I get it on the road I can't get
>any
>power out of it. It just coughs and gags above 3000 RPMs.
>So after all of the fiddling and adjusting I went back to the old filter
>and it works.
>Also it will run with the new filter, if I pull out the choke. This
>tells me that
>the car needs to be oxygen starved to run. WHY????? Here are a few
>more details that may be somehow related. I do not have any charcoal
>canisters hooked up. The pipes coming out of the carb have been
>plugged.
>I am missing a screw at the top of my automatic choke. I have found
>that if
>I put the screw in place the car will not start. All the car will do is
>flood.
>HELP????
>
>Dave C
>79 Spit (should be gasping for air)
>75 Spit (parts)
>
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