Corvette regulator - fuel filter puch on fittings

[1934chevycoupe]

I couldn't find a thread on this, so, is there a trick to getting the push on EFI fittings to AN onto the corvette regulator / fuel filter? I have Russel 640863 for the return, 640853 for the supply in & 640940 for the supply out. I pushed as hard as i could, and even put a little teflon spray on , and nothing. they can't be that hard.

 

[1934chevycoupe]

ok, lubed the inside of the fittings, and they both slid on. now, the male one that goes to the out to fuel rail comes w/ plastic retainers like the female ones already had installed in them. i'm guessing i slide one of those on before i slide it into the body of the regulator-filter?

 

[1934chevycoupe]

still not sure about the last male fitting. you'd think w/ the supplied plastic pieces included, one must go in before sliding it on, but it doesn't look like there's room in there for it. anyone have experience w/ one of these fittings? it's the Russel 640940

 

[streak]

I've never had good luck with those plastic things adapting to GM connections and always use this type. They can't back off.

https://www.amazon.com/Russell-6441...622a1&pd_rd_wg=rbJqb&pd_rd_i=B005C6KTNK&psc=1

 

[1934chevycoupe]

I've never had good luck with those plastic things adapting to GM connections and always use this type. They can't back off.

https://www.amazon.com/Russell-6441...622a1&pd_rd_wg=rbJqb&pd_rd_i=B005C6KTNK&psc=1

ok, i see the difference between what i have and these. doesn't seem like they make one for the 6AN to 3/8 male quick disconnect.

what problems did you have w/ the ones w/ the plastic insert?

 

[72BIGBLOCK]

Post a picture of what you have so we can see

 

[streak]

ok, i see the difference between what i have and these. doesn't seem like they make one for the 6AN to 3/8 male quick disconnect.

what problems did you have w/ the ones w/ the plastic insert?

Personally I've had inconsistent fitment. Also the plastic is known to be more brittle or go bad over time compared to the type used with factory corvette/GTO/camaro lines. It can lead to it braking and the fitting coming off. Suddenly you have fuel pumping into a hot engine bay or onto a hot exhaust and then there's a fire. It doesn't happen a lot but enough that I will only ever use the type that are mechanically secured and can't back off without wrenching or use factory lines.

 

[1934chevycoupe]

Personally I've had inconsistent fitment. Also the plastic is known to be more brittle or go bad over time compared to the type used with factory corvette/GTO/camaro lines. It can lead to it braking and the fitting coming off. Suddenly you have fuel pumping into a hot engine bay or onto a hot exhaust and then there's a fire. It doesn't happen a lot but enough that I will only ever use the type that are mechanically secured and can't back off without wrenching or use factory lines.

makes sense. i don't see anything on the Russel site for the female end - supply line out to engine. is this earls part what i'd need? https://www.summitracing.com/parts/ear-at991965erl

 

[badazz81z28]

I can’t follow the descriptions here…Russell has all the fittings you need for the vette filter. Anything more force then normal pushing it on, indicates something ain’t right.

 

[streak]

Here's a 5/16 to -6 and way cheaper, it's just Edelbrock. It's also still the kind that takes 2 wrenches to install and will never back off due to the plastic failing. Stay away from Jegs fittings, their elbows are way narrower than advertised.

https://www.amazon.com/Russell-644113-EFI-ADAPTER-FITTING/dp/B005C6KTBW