When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Getting ready to start the car after rebuild
When grounding the sending unit on the gas tank I noticed the fuel looks a little pinched. (is this going to be a problem?)
I thought it was too long and cut an inch or so off it.
I think a longer piece allows it to bend gentler maybe 12 to 18 inches?
Just replace it. Cheap and simple. When I bought my 66 Sport Wagon it had the same issue. People tried everything but that to figure out the fuel problem. You already see the issue. Fix it.
To me, it looks like the hard lines are too long, so a new piece of hose will have the same issue. Mock a new piece up next to it, and see where the natural arc wants to end.
Is there a molded right-angle hose that is supposed to be there or I should just loop a 12 - 18 piece?
No mention of a molded angle hose in the 1970 PIM - only fuel hose & clamps. I replaced the fuel hose lines on my 1971 CS convertible & I don't recall having this exact issue. That piece of hose appears collapsed. Obviously it's twisted where it appears collapsed. Generally speaking fuel hoses are more rigid - I think this piece has aged/collapsed & simply needs to be replaced with whatever length works best. You can walk into a variety of automotive supply stores & find fuel hose of various I.D./O.D. sizes and quality. Suggestion: Don't purchase on-line but instead go to several auto stores and ask to examine the hose you're purchasing first. They sell fuel hose by the linear foot. I've seen some auto stores sell fuel hose which is very poor quality - just do your homework & replace it.
I think this piece has aged/collapsed & simply needs to be replaced with whatever length works best
Everything is brand new, tank, hoses, clamps etc.
I will grab a new hose and go 24 inches so I have plenty to loop.
I found a hose for a chevelle that has the 90 degree connection.
As others have stated, yes that will be a problem. A car I purchased a while ago would only run for a few minutes, then quit. After sitting for 10 minutes or so, it would restart and run great, but only for a few minutes. I suspected fuel delivery might be an issue, so I hooked up a pressure gauge between the pump and carburetor, and observed the pressure steadily drop after starting, once it went to zero the engine would stop soon after. I thought the pick-up screen on the sender in the tank might be getting blocked with debris, so I got under the car to remove it, but then I spotted a fuel hose with a kink just like your picture. I replaced that fuel hose with a slightly shorter one, along with all other fuel hoses, and that fixed the issue. It seems the suction of the fuel pump was causing the hose to collapse at the kink, then relax just enough for fuel to flow after the pump stopped, and then repeat.
After going to Napa and grabbing an assortment of clamps and a 90-degree fitting
I ended up bending the metal line a little bit and using a fuel injection hose which seems more rigid.