Zenith 32 NDIX - Best DIY Book
05-25-2004, 10:05 PM
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Zenith 32 NDIX - Best DIY Book
Hi All,
What do you think is the best book for me to use to do my own carb adjustments? I have the workshop manual and Elfink already. Is ABC's better?I am getting some backfiring on deceleration. Any thoughts? Idle Too rich. Exhaust leak? I am no mechanic, just trying to learn as I go.
Thanks,
Tony
What do you think is the best book for me to use to do my own carb adjustments? I have the workshop manual and Elfink already. Is ABC's better?I am getting some backfiring on deceleration. Any thoughts? Idle Too rich. Exhaust leak? I am no mechanic, just trying to learn as I go.
Thanks,
Tony
05-25-2004, 10:24 PM
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welcome to my hell..
too rich, exhaust leak, poping and back firing on deceleration.. very loud, very stinky.
i dont know **** bout carbs and i have dellorto's not zeneths (god i wish i had solexes though).
when you figure out what to do, share it with us.
id say abc's.. (but i dont have it
)
too rich, exhaust leak, poping and back firing on deceleration.. very loud, very stinky.
i dont know **** bout carbs and i have dellorto's not zeneths (god i wish i had solexes though).
when you figure out what to do, share it with us.
id say abc's.. (but i dont have it
)
06-04-2004, 06:34 PM
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Go to Walmart and buy a propane torch with the smallest nozzle you can find. Wrap electrical tape around the intake holes of the nozzle so the gas only comes out the end of the nozzle.
Warm up your car. Use your favorite device to balance carbs side to side.
To set rich or lean to eliminate backfires especially on trailing throttle like going down a hill---
Turn the torch on until you hear a slight hiss of gas. DO NOT LIGHT. Put the propane nozzle into the top of either carb and then take away from engine compartment. Did the idle rise when you put a small amount of gas into the carb (a fuel)? If it rises, turn the mixture screw in very slightly.
Re-do the propane. Rise again? Turn in again. When you no longer have a change in the idle, the mixture is right for that cylinder.
Learned this technique at the 356 Registry West Coast Holiday in Durango Col from the tech guy there who would fix anybodies car that broke down. It works great and your car will run great.
LynnsABCs
Warm up your car. Use your favorite device to balance carbs side to side.
To set rich or lean to eliminate backfires especially on trailing throttle like going down a hill---
Turn the torch on until you hear a slight hiss of gas. DO NOT LIGHT. Put the propane nozzle into the top of either carb and then take away from engine compartment. Did the idle rise when you put a small amount of gas into the carb (a fuel)? If it rises, turn the mixture screw in very slightly.
Re-do the propane. Rise again? Turn in again. When you no longer have a change in the idle, the mixture is right for that cylinder.
Learned this technique at the 356 Registry West Coast Holiday in Durango Col from the tech guy there who would fix anybodies car that broke down. It works great and your car will run great.
LynnsABCs
06-27-2004, 12:21 PM
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The Maestro's Top 10 Reasons for a Backfire:
1. No tailpipes.
2. One tailpipe missing. Or one half a tailpipe missing
3. Leaking tailpipes
4. Hole in muffler
5. Leak at "J" tubes/muffler
6. Hole in J tubes
7. Blown exhaust gasket at head/J tube
8. Partially clogged idle jet (especially in Zeniths & Webers)
9. Carb dripping gas inside from various sources
10. Fouled plug
And three or four more for good measure:
11. Burnt exhaust valve
12. Sometimes a leaking head/cylinder, but it makes the most noise on
acceleration.
13. Too tight intake valves
14. Broken Valve Spring/popped seat/intake valve seized/not sealing
15. Extractor exhaust
Keep 356 Faith
Maestro
reprinted by Peter
1. No tailpipes.
2. One tailpipe missing. Or one half a tailpipe missing
3. Leaking tailpipes
4. Hole in muffler
5. Leak at "J" tubes/muffler
6. Hole in J tubes
7. Blown exhaust gasket at head/J tube
8. Partially clogged idle jet (especially in Zeniths & Webers)
9. Carb dripping gas inside from various sources
10. Fouled plug
And three or four more for good measure:
11. Burnt exhaust valve
12. Sometimes a leaking head/cylinder, but it makes the most noise on
acceleration.
13. Too tight intake valves
14. Broken Valve Spring/popped seat/intake valve seized/not sealing
15. Extractor exhaust
Keep 356 Faith
Maestro
reprinted by Peter
