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Re: T&T: Fuel System Parts Sources

RG
Rich Gano
Sun, Jun 19, 2011 1:54 PM

While I cannot help much on the manifold issue, I can comment from long
experience with the $10-valves ball valves from the big-box (and some
little-box) stores.  I have a number of them in modifications I have made over
the years (some dating back 23 to 24 years in this boat), and I have yet to
experience a leak through the stems of any of them including the valves at the
bottom drains of my four fuel tanks.  Many of my valves are connected to fuel
hose using threaded barbed adapters.  Be sure to use fuel-proof dope or Teflon
tape (yellow) on the threaded connections.

Rich Gano
CALYPSO (GB-42 #295)
Southport, FL (near Panama City)

While I cannot help much on the manifold issue, I can comment from long experience with the $10-valves ball valves from the big-box (and some little-box) stores. I have a number of them in modifications I have made over the years (some dating back 23 to 24 years in this boat), and I have yet to experience a leak through the stems of any of them including the valves at the bottom drains of my four fuel tanks. Many of my valves are connected to fuel hose using threaded barbed adapters. Be sure to use fuel-proof dope or Teflon tape (yellow) on the threaded connections. Rich Gano CALYPSO (GB-42 #295) Southport, FL (near Panama City)
BH
Brent Hodges
Sun, Jun 19, 2011 3:17 PM

Rich wrote:

While I cannot help much on the manifold issue, I can comment from long
experience with the $10-valves ball valves from the big-box (and some
little-box) stores.  (endsnip)

First, I have a great respect for Rich's opinion and experience, but I'll
throw this in. I have no experience with the box store valves myself, but
one list member from his neck of the woods, Wayne with "Celestial" had a bad
experience with them. As I remember his story, he built a fuel polishing
system, tied into his fuel manifold and used the cheaper valves. While he
had no external leaks he chased an air infiltration problem for quite a
while only to find the valves were leaking around the stems and letting air
in when under vacuum. Apparently most of them are built and tested for
pressure, not vacuum. He ended up changing his out for Apollo valves (as I
remember it) and had no more problems. Maybe he will read this and correct
anything I have wrong.
Personally, while I might not have a problem with the cast iron manifold
(paint it well on the outside) I would use a better valve on my fuel system.
I tiny air leak can be a real headache.

Brent Hodges

Rich wrote: > While I cannot help much on the manifold issue, I can comment from long > experience with the $10-valves ball valves from the big-box (and some > little-box) stores. (endsnip) First, I have a great respect for Rich's opinion and experience, but I'll throw this in. I have no experience with the box store valves myself, but one list member from his neck of the woods, Wayne with "Celestial" had a bad experience with them. As I remember his story, he built a fuel polishing system, tied into his fuel manifold and used the cheaper valves. While he had no external leaks he chased an air infiltration problem for quite a while only to find the valves were leaking around the stems and letting air in when under vacuum. Apparently most of them are built and tested for pressure, not vacuum. He ended up changing his out for Apollo valves (as I remember it) and had no more problems. Maybe he will read this and correct anything I have wrong. Personally, while I might not have a problem with the cast iron manifold (paint it well on the outside) I would use a better valve on my fuel system. I tiny air leak can be a real headache. Brent Hodges
MR
Mark Richter
Sun, Jun 19, 2011 5:22 PM

Yes, there is a difference in fuel valves used in the suction side of the
system.  Stem micro-leakage of air will soon collect until it makes its way
to the injection pump, then it's surge and die.

Apollo ball valves in 1/4" to 1/2" sizes are all $10.56 each.
Apollo bronze 3-way ball valve in 1/2" size is $18.21
Apollo bronze 5-port fuel selector valve in 1/2" is $54.35, perfect for a
4-tank system.
all are from my Viking Terminal Marine catalog.  732-238-9434, in NJ

I can't say their service is good, but they often have things I need that
are hard to find, and often have good prices.  They claim to be wholesale
only, so pretend to be a business.  If you pay by credit card, no problem.

Mark Richter,  Ortona, FL on the Okeechobee Waterway
"Winnie the Pooh" 46' troller-yacht

one list member from his neck of the woods, Wayne with "Celestial" had a
bad experience with them. As I remember his story, he built a fuel
polishing system, tied into his fuel manifold and used the cheaper valves.
While he had no external leaks he chased an air infiltration problem for
quite a while only to find the valves were leaking around the stems and
letting air in when under vacuum. Apparently most of them are built and
tested for pressure, not vacuum. He ended up changing his out for Apollo
valves (as I remember it) and had no more problems.

Yes, there is a difference in fuel valves used in the suction side of the system. Stem micro-leakage of air will soon collect until it makes its way to the injection pump, then it's surge and die. Apollo ball valves in 1/4" to 1/2" sizes are all $10.56 each. Apollo bronze 3-way ball valve in 1/2" size is $18.21 Apollo bronze 5-port fuel selector valve in 1/2" is $54.35, perfect for a 4-tank system. all are from my Viking Terminal Marine catalog. 732-238-9434, in NJ I can't say their service is good, but they often have things I need that are hard to find, and often have good prices. They claim to be wholesale only, so pretend to be a business. If you pay by credit card, no problem. Mark Richter, Ortona, FL on the Okeechobee Waterway "Winnie the Pooh" 46' troller-yacht > one list member from his neck of the woods, Wayne with "Celestial" had a > bad experience with them. As I remember his story, he built a fuel > polishing system, tied into his fuel manifold and used the cheaper valves. > While he had no external leaks he chased an air infiltration problem for > quite a while only to find the valves were leaking around the stems and > letting air in when under vacuum. Apparently most of them are built and > tested for pressure, not vacuum. He ended up changing his out for Apollo > valves (as I remember it) and had no more problems.