| Author | Message | ||
     Bob Reynolds Experienced User Username: bobreynolds Post Number: 31 Registered: 8-2012 |
As I understand it, the heat from the Exhaust Manifold is supposed to heat up the Choke Coils via the 2 Stove Pipes, and thereby gradually turn the choke off. But the system seems to be connected the wrong way round! I would expect the hot air to go from the Exhaust Manifold, to the Choke Coils and then into the engine Air Intake. But the Stove Pipe from the engine Air Intake goes to the Exhaust Manifold rather than the Choke Coils; which means that the air is drawn over the Choke Coils first, then over the Exhaust Manifold, then into the Air Intake. This is obviously the wrong way round, so how does the system work? | ||
| Paul Yorke Grand Master Username: paul_yorke Post Number: 965 Registered: 6-2006 |
Behind the coils is a drilling into the intake which is at a point where the depression is deeper than the fresh air side/point that the pipe is connected to .before the choke butterfly. | ||
| Paul Yorke Grand Master Username: paul_yorke Post Number: 966 Registered: 6-2006 |
ps . if your intake pipe is actually getting hot then either the hot spot pipe has a hole in it or the pipe between the hot spot and coils is broken . the pipe to the coils should be too hot to touch after a few mins. | ||
| Bob Reynolds Experienced User Username: bobreynolds Post Number: 32 Registered: 8-2012 |
"Behind the coils is a drilling into the intake which is at a point where the depression is deeper than the fresh air side/point that the pipe is connected to before the choke butterfly." Ahh I see. So the second stove pipe from the Exhaust Manifold to the Air Intake isn't strictly necessary for the system to work then? The air might just as well enter the system at the Exhaust Manifold, through some sort of restrictor valve. No doubt there is a reason why the air circuit is circulatory. | ||
| Paul Yorke Grand Master Username: paul_yorke Post Number: 967 Registered: 6-2006 |
yes , although not circulatory but because nobody wants unfiltered air going into their engine or the small drillings in the choke unit. | ||
| Brian Vogel Prolific User Username: guyslp Post Number: 253 Registered: 6-2009 |
By the way, if you find yourself in the same situation as many of us with either a completely missing or terribly damaged woven asbestos insulation sleeve on the stove pipe between the exhaust manifold and the choke, the Black Heat Protector Silicone Plug Wire Sleeve Cover available on Amazon and elsewhere works perfectly as a replacement. It easily slips over the connector nuts on either end and, if you cut it just a bit longer than the pipe, it "hugs" the nuts on each end and eliminates the need for securing clips. Brian |
