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therealbugthug
Samba Member
Joined: June 30, 2012
Posts: 17
Location: Pulaski Wi
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 Posted: Wed Oct 19, 2016 7:43 pm Post subject: 36hp stalling |
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| I have a 1955 beetle 36 hp. It is having an issue with the idle. I have cleaned the carb. Set the timing. Has new wires and runs good and idles fine at rest but when driving it will want to stall during deceleration. I will give it a bit of throttle and will idle again. Where to begin? |
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txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
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| Posted: Wed Oct 19, 2016 8:18 pm Post subject: Re: 36hp stalling |
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Is it only when cold or all the time?
Could be fuel pump/pressure at idle, carb float/valve |
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EverettB 
Administrator
Joined: April 11, 2000
Posts: 69823
Location: Phoenix Metro
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therealbugthug
Samba Member
Joined: June 30, 2012
Posts: 17
Location: Pulaski Wi
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| Posted: Sat Oct 22, 2016 2:29 pm Post subject: Re: 36hp stalling |
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I tried the idle adjustment several ways and the idle mixture screw just does not seem to have any affect on it. Maybe it is plugged somewhere? seem like only the throttle adjustment is allowing it to idle. I think I will do a better cleaning/rebuild and see if that helps. Also how would I test to see if fuel pump was weak?
I also have a question on the point gap. I have it set to spec and then checked dwell which is supposed to be 50 but it is about 30. If I adjust points to get dwell close to 50 the gap is way off. Which one should I keep? |
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txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
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| Posted: Sat Oct 22, 2016 3:06 pm Post subject: Re: 36hp stalling |
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Set dwell.
Will have to put (rig) a fuel pressure gauge to line to test it.
My experience (and others disagree or have other experiences), but once a port is clogged in an old carb, it's hard to clean out. I also run (prefer) a 30 pict 1 carb with 6V electric choke
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EVfun
Samba Member
Joined: April 01, 2012
Posts: 5481
Location: Seattle
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| Posted: Sat Oct 22, 2016 4:14 pm Post subject: Re: 36hp stalling |
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Where did you get the 6 volt electric fuel pump? Does it need a pressure regulator?
_________________
| Wildthings wrote: |
| As a general rule, cheap parts are the most expensive parts you can buy. |
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txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
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| Posted: Sat Oct 22, 2016 8:41 pm Post subject: Re: 36hp stalling |
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EVfun:
Summit racing: $30
https://www.summitracing.com/parts/atx-e8011?ibanner=MobileSwitchNo
I installed a regulator and set to 3psi. Unfortunately I do not know the unregulated pressure, but doubt it's much higher. I've been running the pump for 3 years and love it. Cleaner engine compartment and consistent pressure...the price helps too.
Nice Stock rebuilt units are over $250. I used the stock choke pull location to install the switch/cutout as well. Dash looks completely stock... |
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