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1 stud build
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Fri Nov 08, 2019 7:04 am    Post subject: Reply with quote

safe wrote:
Just make one. Cardboard template, some aluminium sheet and an electric jigsaw.


I got other stuff from them so i bought the backplate aswell
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Fri May 15, 2020 11:35 pm    Post subject: Reply with quote

Tried to fire her up today but carburetors were flooding. Any idea why? tried to loosen the fuel preassure regulator and blocking second fuel return lines, theres two in carbs and one in fuel preassure regulator

https://youtu.be/RFWaPxsQ5y0
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safe  



Joined: 18 Mar 2017
Posts: 150
Location: Sweden

PostPosted: Fri May 15, 2020 11:45 pm    Post subject: Reply with quote

How much fuel pressure?
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Sat May 16, 2020 1:19 am    Post subject: Reply with quote

probaly 2 psi, loosened it all the way
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safe  



Joined: 18 Mar 2017
Posts: 150
Location: Sweden

PostPosted: Sat May 16, 2020 1:30 am    Post subject: Reply with quote

Have you adjusted the float bowl level?

Disclamer: Carbs are not my forte.
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Sat May 16, 2020 3:49 am    Post subject: Reply with quote

not yet, didnt have time to take them off because had to leave to work
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Mon May 18, 2020 1:24 am    Post subject: Reply with quote

ok the two tubes on the top arent returns... they are just breathers
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safe  



Joined: 18 Mar 2017
Posts: 150
Location: Sweden

PostPosted: Mon May 18, 2020 1:44 am    Post subject: Reply with quote

Carbs Usually doesnt have returns. The floats just closes the "fill valve" needle valve. So to set the floats levels is crusial.
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MikeJinCO  



Joined: 08 Jun 2010
Posts: 890
Location: Maysville, Colorado

PostPosted: Mon May 18, 2020 2:55 am    Post subject: Reply with quote

Safe's right. On my Webers I run a fuel pressure regulator at 2psi(max for Webers is maybe 3.5. with no return. In US Holley 804 is an inexpensive fuel pressure regulator. I also use a Carter P4070 fuel pump something like 4-8 psi output.. Many of the racers use Facet pumps, but not the really cheap cube one. Different carbs will want different fuel pressures. Some pressure regulators will have a bypass/return in them.

On the race car I have an in line pre filter (85-100m) Then run thru the pump to a stock 924 Bosch filter(interesting finding fittings) then the pressure regulator. The street car just has a really cheap($3) plastic filter from any flaps.
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Mike
Poco a Poco, #033 '78 Vintage racer, SCCA Dp-81
'77 924
cricketdesigns.com
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Mon May 18, 2020 4:50 am    Post subject: Reply with quote

gonna take them off tomorrow and clean the needles and if that doesent fix it ill try to set the float level no idea how to do it though
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Thu May 21, 2020 4:02 am    Post subject: Reply with quote

https://www.youtube.com/watch?v=Pt-77UrGv0M

should they be like this when i flip them upside down and back they sometimes they get stuck. they go back by pushing or hitting bowl with screw driver.
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Sat May 23, 2020 6:06 am    Post subject: Reply with quote

Cleaned carbs today and the they still flood
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safe  



Joined: 18 Mar 2017
Posts: 150
Location: Sweden

PostPosted: Sat May 23, 2020 6:24 am    Post subject: Reply with quote

What kind of carb is it!?

The 40ish degree you have mounted the carbs at, is that within the allowed spec?
As Ive said, Im no carb Guru, but i think you must mount them pretty much horisontal.
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Sat May 23, 2020 7:45 am    Post subject: Reply with quote

ive seen plenty mounted at an angle like this. i think i need to adjust level but no idea how to do it.
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Juho  



Joined: 03 Oct 2018
Posts: 94
Location: Finland

PostPosted: Sun May 24, 2020 6:03 am    Post subject: Reply with quote

Another day of testing, mounted the carburetors more horizontally. Tried to bending the tangs that adjust the float level from all they way up to all way down. Any of those didn't help and the carburetors are still flooding.


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