Slaghammer Mystery Solved! When Unlikely Problems Happen In The Last Place You'd Look
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- เผยแพร่เมื่อ 2 ก.ย. 2023
- Last time at the track, we found our previously sweet running 383 all of a sudden sounding ragged, slowing down and then mysteriously closing up the gap on one of it's spark plugs.
We were set to go again last night and hopefully solve the plug issue, when new gremlins struck us before we even.left our pit.
We came home and started troubleshooting only to find something completely unexpected in a length of braided line made of materials we had never even seen before.
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I made the massive mistake of buying some black braided fuel line off of Amazon during 2020 shortages. That stuff ruptured and leaked everywhere within a few months. Very dangerous stuff, but I was lucky because it never came into contact with open flame. Gutted it and waited for quality line, and learned a lesson.
It might be a good idea to change the fuel filter in case any rubber particles are in there from that hose.
That’s as hard a problem to find as a muffler that has a baffle come loose and block the exit lol.
UT has had 1 clean run down the track in 3 years…it seems there needs to be money on the line to get the full Tony !
Its ALWAYS in the last place you look
I had a new (2 month old) intake hose for my Land Rover collapse and shutting down engine while going 55mph on the fwy! It wasn’t in contact with fuel but it did have contact with Chinese manufacturers.
How to drag out a 3 min explaination to 15mins.
Moral to the story, never reuse old fuel lines. You never know the true working condition of it.
I feel like a lot of Tony's problems are self induced.
Why would you use an old piece of junk on your build to begin with?
As an aviation guy, we have to do a bore check on fuel and hydraulic lines at scheduled times to detect this very issue. This applies to small aircraft here. We drop an appropriately sized ball bearing down the line to check for internal obstructions. Yes, the large commercial aircraft have those teflon lined hoses in the 3000PSI systems (brake lines etc) but those things are NOT cheap either.
Sometimes using old/junk/free parts can be very expensive. It has happened to me.
Looks to me like that braded hose was something that Autozone would sell in the "chrome gets you home" section of the store. One of those Spectre kits of braded this and braded that. Probably was vacuum line instead of fuel hose.
I had a stuck caliper as I was driving. I was able to knock it a bit loose with the handle of a snow brush, a very Canadian solution. It turned out that the brake hose had collapsed and held pressure like an unwanted check valve! Lesson learned, I replace my hoses every few years. They're cheap.
I prefer hard line, especially now since they make the rust resistant stuff, which is also easy to form. I use minimal rubber (fuel injection rated) for connections only. I never liked the idea of not knowing what's going on inside the braided hose. At least with unshielded rubber you can monitor the deterioration. I also love the look of hardline when done right. As always, thank you for the content, I really enjoy it!
That braided line is from a hardware store like home depot.
I was using a compression fitting to attach braided steel to a factory steel line. This had a rubber grommet it used as a seal. The grommet would slowly creep down the steel line inside the fitting, then close off the line like a check valve. Doing over 60mph it would stay open.. slow down and the line would close and you'd be dead in the water. Of course it happened in road construction, I5, downtown Seattle. Managed to get restarted and drove like hell for 2.5hrs to get home! lol
My dad and grandpa that built cars and fixed cars taught me alot but there both passed away .i wish we all had an uncle Tony. We can always learn so much from tony about cars.i really appreciate the time and effort u put into teaching us about cars thank you so much.💯👍
😂Tony got bit on the ass by his own doing, throwing used parts on a car without inspection and this is what you get, I don't understand how you could mistake nylon for steel. Going cheap on your fuel system can be deadly, some parts need to be bought new, fuel line is one such thing.
My preference has always been hard lines, typically the brake lines all the parts stores sells. It can handle high pressure, some OEM fuel filters have the same threads as the brake line fittings . I can cut it clean and put a slight flare on it to act as a barb for rubber hose. NHRA allows either 6 or 12 inches of rubber hose, i forget. Rubber is easier to inspect and troubleshoot than braided. Some parts stores sell rubber fuel line that is rated for EFI pressures and is teflon lined. I use that for the short sections