Hi all,

So shortly after getting my Fuel Boss lift pump and big line kit installed a few months ago I noticed that I have a 1-2 psi needle bounce in my autometer mechanical fuel pressure gauge. I am using a snubber from Geno's and my pressure tap is located on the filter canister outlet. As you can see here.

The items are from left to right, Female JIC end of Vulcan Universal Fuel line(brass), Male JIC to NPT adapter(silver), Geno's snubber(brass), Street 90 from Ace(brass). This setup comes out of the tapped 90 that attaches to the bottom of the fuel filter canister. 

 

Anyway, I've dealt with the needle bounce for this long, but I always regretted not installing a needle valve so that I could turn the gauge supply off in an emergency. The more I thought about it, I realized that adding a needle valve would probably help with my needle bounce and make my gauge last longer. So I got one from Vulcan. My question is, should I used the snubber and the needle valve? or just the needle valve? The only thing that concerns me about using both is that assembly is getting long and heavy where it comes out of that tapped 90. Also, does it matter what order I put the items in? I am also looking for recommendations on thread sealant for the NPT threads. I have used this 

and this

in the past and both seem to be ok. The 545 is the purple liquid stuff and I always feel like I need to let it sit overnight before running fuel through it. The 567 is more like regular pipe dope. I always figured the purple liquid stuff was safer for a post filter application than pipe dope just incase some got to the injectors. But I was told when I did my Fuel Boss install that regular white(PTFE or whatever its called) pipe dope was fine for that. I would like to know what you all think and normally use. 

Thanks in advance!

Edited March 30, 20169 yr by leathermaneod

Ok so I get the idea of the 45°. But I don't see a dual port pushlok T. Is that something you are trying to find? Or are you using the Schrader valve T instead? Honestly I really think just having a tapped 90° at each end is almost easiest. If I can just get parts that don't leak lol. I'm planning to make the hose longer this time and the bend over the ps cap a little bigger. Or maybe try and loop it behind again. Or maybe I can go down and under things... I'll have to see how it goes, but Eric said I should try to make it longer and put less stress on the fittings. There has seriously got to be something wrong with these fittings, but Eric said he hasn't heard anything else back about them so I don't get it. This is supposed to be better and easier than the stock banjo fittings, not harder...

Its tough to measure the female.  For the male many companies make a tool to measure the angle.  See this video he shows the tool and how to check a male.  you use the longer ends to reach into the female and check.   No, sorry, I have VDO pyro.  My FP is Autometer.  VDO just didn't have what I wanted for fuel pressure.  I hope they do in the future. 

 

You might be able to do the sharpie check, if you have a known male 45 and 37 to see which seals better. 

Unfortunately I don't have anything that is know at this point lol I'll just have to see what happens with this new set of fittings Eric is sending me. I may do the sharpie check before putting them on the truck. I just wish there was some better way to do this. Or that you could get brass versions of these tapped 90°s. 

Just want to update this I case anyone is following. When I re drilled and tapped my manifold for moving my pyrometer, I checked up on the fuel leaks again. VP end was dry but the Fuel Filter housing end was still leaking. So, while the truck was cold, I snugged it up some more. Just wanted to give it one more try before throwing in the third set of fitting from Eric. Well it seems to have worked. I'm not sure what's different, but no more leaks at this point. I had already gotten the third set of fittings from Eric so I emailed him asking if he wanted me to send them back or pay for them, since I wasn't going to use them right now. I really felt bad taking free stuff from him since he was so helpful and all. Anyway he told me to keep them just in case I have issues in the future. He even told me he had hand picked and ink checked the set of fittings he had sent. He had left them together so that they would be matched. So I just want to say again how great it is doing business with Vulcan Performance and highly recommend them to everyone for anything you need that they sell!

Thats awesome that he said to keep them.  Now this means you have to pay it forward.....

I will certainly do my best! 

Eric really is a great guy. I've never met him and I'm not sure if he remembers me when I call but we've have quite a few 30+ minute conversations, some were him walking me through things while he was still working, others just shooting the breeze. I think it's pretty awesome when we can bond over a common interest and that it shows there are genuinely good people still out there.

46 minutes ago, notlimah said:

Eric really is a great guy. I've never met him and I'm not sure if he remembers me when I call but we've have quite a few 30+ minute conversations, some were him walking me through things while he was still working, others just shooting the breeze. I think it's pretty awesome when we can bond over a common interest and that it shows there are genuinely good people still out there.

 

 

I know Eric personally and consider him a good friend.  I actually worked part time for him part of a summer and saw first hand how he took care of his customers.  Some were not always great to deal with but he would try to do his best to do right by even the very few that really may not have been deserving.  It is not lost on him how important his customers are. 

I've been to his place a few times. It was amazing how much he took real good care of me and my truck. He researches  the best items out there for us  and stocks them. If it's not available he will build it the right way. He knows who the right people are for injection pumps too.

 

I asked him, ''Do you believe in the Lord because you really care about others''? He said yes we do.