Sure do, teflon lined hose requires steel fittings with brass feral.I’ll be going down this road soon.
Existing are rock hard and unsure of age.
IIRC - Teflon ( Type D) has a larger minimum bend radius that may be a
factor. Do they need different type fittings?
Sure do, teflon lined hose requires steel fittings with brass feral.
Rubber lined hose uses aluminum anodized fittings.
I only use the cutter design fittings. They grip the hose in 2 places.
40 year old hoses, they all had rigamortus bad.
The lines with steel fittings are teflon lined. Typically used for higher pressure application. Like said they don't bend as well.
My spark plug socket works perfect to install #8 hose ends.
Chop saw...Those years of running a dragster sure have benefited your airplane maintenance requirements. Do you use a cutoff wheel on the braided hoses? That's a nice clean cut.
Do replace them soon.I’ll be going down this road soon.
Existing are rock hard and unsure of age.
I second their quality and customer service excellence. I have purchased tens of hoses from them over the last 15 years for both certified and experimental aircraft.I have used https://www.aircraftspecialty.com/ several times and they are great. Tom overnighted me a new hose so I could do my check ride after I shorted it when I was replacing a battery and put a black spot on the stainless braiding.
Aircraft is a PA-12 with a O-320 upgrade.
It has a Tri- pacer type “ chin” oil cooler.
Hoses go up the front of the engine and back over the top.
Obviously that means the hoses are exposed to elevated temps
after shut down. Original system used steel tubing.
Hoses are still on aircraft pending a decision. Do I reuse existing hose
fittings and just replace hose? The alternative is getting Type D which i
prefer but there are concerns with some bends. The plan is to dermine
the total scope of any repairs and mods before addressing issues.