I discovered this stuff in an article on the internet and I’ve fallen in love. Long story short the transmission lines in my 98 Cherokee are a big headache and the factory style setup likes to leak at the transmission. Right now I’m losing fluid very rapidly so my vehicle’s down until I get the leak fixed.
Interesting. What torque should be used for AN6? In case of no torque wrench available what's the common rule? Finger tight and the 1.5 flats or d9es this not apply to ptfe compression fitting?
Is there a way to remove the fitting and reuse it with a new olive? I'm having a really hard time getting the bottom piece out of the fitting off the line !
I have done it with success before by slightly torquing the fitting down a little bit further than it originally was; this might be a trial-and-error situation for you. Replacing the olive is always the recommended choice, though. If you are dealing with fuel, keep a close eye out for any leaks.
can you put a ptfe line on over a barb fitting? Im thinking either oversized ptfe line vs OD of the barb and somehow bond them together with some sort of silicon/RTV kinda medium, if so it have to bond well to both ptfe and brass and be flexible but solid. shouldnt be getting into the engine if I smear it on the outside of the barb and let it cure for the products specified time. The other is slightly undersize ptfe line vs OD of the brass fitting, but maybe one can make the PTFE pliable enough to slip it on. using heat and or lubrication? Reason I ask is I can get a barbed brass press fitting for oil return on a volvo B230FK turbo engine that presses in to the bottom of the block above the pan where the stock hard pipe line goes into. But that pipe only works if you use stock manifold and a mitsubishi td04 turbo. they also have a tendency to not seal because it bolts on the turbo and just kinda hangs down into the hole where it "seals" against and o ring that it lays on top of. real pain in the ass. my local shop only offer the press fitting in a single variant with an 18.5mm od barb and thus its something like 3.5mm to big vs AN12 ID, and like 4.5 too small for AN16 ID. And Ive also heard ptfe hose might be better than rubber an hoses because of the heat and oil, or will a rubber variant with a certain specification or specific type rubber an hose do? Should I have just a short bit of AN rubber off the barb end? say 2-3 inches off from it and couple it to a ptfe AN line from there to the turbo? Im planning on swapping turbos already, but I also need to stop the damn thing from leaking as it currently does with the stock unit and might as well get it done and ready to plug into a Garret unit using a single simple adapter when that time comes. Any helpful inputs would be much appreciated.
No you cannot, unless the hose end/fitting is specifically for the brand, series, and specific size of PTFE hose that you have. Using the incorrect hose ends/fitting will cause them not to seal correctly, it can damage the PTFE lining, which will cause it to leak and possibly causing a fire depending where it’s leaking and what the fluid is leaking on to.
I discovered this stuff in an article on the internet and I’ve fallen in love. Long story short the transmission lines in my 98 Cherokee are a big headache and the factory style setup likes to leak at the transmission. Right now I’m losing fluid very rapidly so my vehicle’s down until I get the leak fixed.
Interesting. What torque should be used for AN6? In case of no torque wrench available what's the common rule?
Finger tight and the 1.5 flats or d9es this not apply to ptfe compression fitting?
Shouldn't you only tighten the nut? Or is it okay to to turn the male fitting into the PTFE line like that?
PTFE is self lubricating / low friction
Thanks for the video!!!
Is there a way to remove the fitting and reuse it with a new olive? I'm having a really hard time getting the bottom piece out of the fitting off the line !
I have done it with success before by slightly torquing the fitting down a little bit further than it originally was; this might be a trial-and-error situation for you. Replacing the olive is always the recommended choice, though. If you are dealing with fuel, keep a close eye out for any leaks.
can you put a ptfe line on over a barb fitting?
Im thinking either oversized ptfe line vs OD of the barb and somehow bond them together with some sort of silicon/RTV kinda medium, if so it have to bond well to both ptfe and brass and be flexible but solid. shouldnt be getting into the engine if I smear it on the outside of the barb and let it cure for the products specified time.
The other is slightly undersize ptfe line vs OD of the brass fitting, but maybe one can make the PTFE pliable enough to slip it on. using heat and or lubrication?
Reason I ask is I can get a barbed brass press fitting for oil return on a volvo B230FK turbo engine that presses in to the bottom of the block above the pan where the stock hard pipe line goes into.
But that pipe only works if you use stock manifold and a mitsubishi td04 turbo.
they also have a tendency to not seal because it bolts on the turbo and just kinda hangs down into the hole where it "seals" against and o ring that it lays on top of. real pain in the ass. my local shop only offer the press fitting in a single variant with an 18.5mm od barb and thus its something like 3.5mm to big vs AN12 ID, and like 4.5 too small for AN16 ID.
And Ive also heard ptfe hose might be better than rubber an hoses because of the heat and oil, or will a rubber variant with a certain specification or specific type rubber an hose do?
Should I have just a short bit of AN rubber off the barb end? say 2-3 inches off from it and couple it to a ptfe AN line from there to the turbo?
Im planning on swapping turbos already, but I also need to stop the damn thing from leaking as it currently does with the stock unit and might as well get it done and ready to plug into a Garret unit using a single simple adapter when that time comes.
Any helpful inputs would be much appreciated.
No you cannot, unless the hose end/fitting is specifically for the brand, series, and specific size of PTFE hose that you have. Using the incorrect hose ends/fitting will cause them not to seal correctly, it can damage the PTFE lining, which will cause it to leak and possibly causing a fire depending where it’s leaking and what the fluid is leaking on to.
which hose type are you not supportive use the hose cutters on again?
I didnt understande the size is there chart for tube size and fiting
The -# is in 1/16th of an inch increments of the inside diameter of the hose. Open the first Google result for "AN size chart".
An size is in 1/16th simplify the fraction of the hose to get size a An 8 = 8/16 = 1/2” hose
is PTFE line better quality than steel braided line
KING HOSE PTFE/HNBR High and low pressure multifunctional hose
No vice jaws ??. The fittings will be marked and damaged.
No they won't