 Fuel lines and twin carbs |
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| JFG |
 May 22 2016, 09:41 AM
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Senior Member  Group: Members Posts: 686 Joined: 7-April 16 From: Wales Member No.: 19,869 Region Association: None  |
I am fitting twin IDF 40's to my 1.7 engine (it came as a rolling shell) and need to change the fuel lines from front to back.
Do I need to install a return line? What size outside and\or internal diameter are the standard lines? I'm going to make my own using stainless steel and need the specs to buy the correct pipes. Finally. Do I need to tap a vacuum take off into the manifolds for the distributor? |
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| HansJan |
May 26 2016, 08:27 PM
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Member Group: Members Posts: 395 Joined: 5-April 16 From: Sugar Land TX Member No.: 19,860 Region Association: Southwest Region 
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I installed the supply line from Chris (Tangerine). Very easy operation. Only if I were a very good tube fitter (like hydraulics tech) I would make my own. The pump in my car is in the rear, and does not require a return line. Its an EMPI-pump with dual carberator setup.
If you decide to make your own I suggest that you use tubing as much as possible (using crimp-fitting if needed) and reduce rubber hose as much as you can. Good luck Hans Jan |
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Posts in this topic
JFG Fuel lines and twin carbs May 22 2016, 09:41 AM
Dave_Darling Some pumps do not require a return line. Some do.... May 22 2016, 11:41 AM stugray Install them both.
If you decide to not use the s... May 26 2016, 10:27 PM brant All manufactures use return lines
Cooler circulato... May 27 2016, 08:39 AM
JFG 5 years sine I last owned an air-cooled, I'm s... May 27 2016, 02:04 PM |
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