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Fuel system and throttle linkage reference.


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I’m looking to replicate the fuel system and throttle linkage for a 60s gasser with a Hilborn injector with a 671 Blower amd moon tank. Can’t seem to find any clear pics. Any help is appreciated. 

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Posted (edited)

I answered this a while back but some of the pix have disappeared. 

Here's a mechanical injection plumbing schematic. Between the two, that should be enough. There is linkage from the throttle pedal that operates the metering valve (sometimes called "barrel valve"), and the throttle butterflies.

FIschematic.jpg.d4e475773047595fa15a50e79003df22.jpg

 

EDIT: The link below will take you to an explanation of mechanical fuel injection. The linkage and plumbing should start to make sense if you read the material and look at the pix.

https://www.enginelabs.com/engine-tech/fuel-cooling/need-know-mechanical-fuel-injection-types/

 

Edited by Ace-Garageguy
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I always wondered why there was a second set of nozzles (usually smaller) on Velocity Stack-type FI units. I never thought of them being idle-speed injectors... Thanx Bill!

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10 hours ago, Ace-Garageguy said:

I answered this a while back but some of the pix have disappeared. 

Here's a mechanical injection plumbing schematic. Between the two, that should be enough. There is linkage from the throttle pedal that operates the metering valve (sometimes called "barrel valve"), and the throttle butterflies.

FIschematic.jpg.d4e475773047595fa15a50e79003df22.jpg

 

EDIT: The link below will take you to an explanation of mechanical fuel injection. The linkage and plumbing should start to make sense if you read the material and look at the pix.

https://www.enginelabs.com/engine-tech/fuel-cooling/need-know-mechanical-fuel-injection-types/

 

Thanks for the info. This helps me immensely! 

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In addition to what Bill posted, these might be of help too?  I've had these saved for a long time...  back when I used to get into small detailing 😐

Barrel20Valve20Schematic.jpg

Twin20Fuel20Pump20Schematic.jpg

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