Can hose clamps take 2.5 bar? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 11-11-2003, 11:34 AM   #1 (permalink)
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Can hose clamps take 2.5 bar?

Tried to change my fuel filter today on the Rangie 4.6 HSE. Sounded like a good idea, since up to 30,000 liters of fuel will have passed it since new if it is the original filter. Relieved pressure by slowly opening front union at filter, as per the book. The rear union was more stubborn, so i dozed it in WD-40 and went for lunch. Got back and persuaded the union to come apart. Proceeded to install new filter. Found out that the treads in the rear union had sheared and were still sitting in the filter threads!? Maybe not so good idea after all, but here I am.

Question: can I use a new nipple that screws into the filter and attach it to the remaining hose with a barbed hose nipple and two ss hoseclamps? Or does it have to be pressed or screwed to take 2.5 bar?

I realize the proper procedure is to drain and lower tank to access the union at the fuel pump, and replace the line from pump to filter with a pressed and braided hose. But is it really necessary?

Hope my friend Paul the ski bum is not to pissed of by my shamless efforts to get free lift passes to answer this question...
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Range Rover 4.6 Vogue 2001 - still shiny
Defender 110 CSW Td5 2001 - expedition/radical family wheeling
Suzuki LJ80 1982 - "Standard" trialer
Volvo C304/Tgb 13 6X6, portals, on 35" - stocker

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Old 11-11-2003, 11:42 AM   #2 (permalink)
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The original filters do not accept tapered pipe thread fittings so you can't just go down to the corner hardware store and buy a hose barb.

In spite of my disappointment in your comments about me , I'm happy to assist (see what a guy I am).

Cut the crimped ferrules off with a rotary tubing cutter, remove the existing hose to expose a hose barb. Obtain two new pieces of ~8M/M tubing and a pair of wrom-gear hose clamps and a filter with hose barbs and you're all set.

I use the worm-gear clamps, but the "Authorities" say to use a special super duper fuel injection clamp. Don't tell my liability insurance agent!

FWIW-I don't really even bother trying to remove the stock ones, I just cut the damned things off and go with barbed filters (which I of course stock and sell).
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Old 11-11-2003, 11:51 AM   #3 (permalink)
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My plan was to go to the hydraulic shop that did my brake hoses and have them dig out a fitting that works with the filter, now that I have the filter. I spoke to their 24 hour emergency guy, and they definitely do fuel lines.

So, you tell me that the steel fuel line that comes from the tank is barbed under the pressed on hose? And that hose clamps will do? I thought I wanted to keep a stub hose to attach to, but not so?I think I know where to get the fancy clamps, by the way.

And Paul, if I end up with a free ticket, I'll share it with you!
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Christer Wilsby

Range Rover 4.6 Vogue 2001 - still shiny
Defender 110 CSW Td5 2001 - expedition/radical family wheeling
Suzuki LJ80 1982 - "Standard" trialer
Volvo C304/Tgb 13 6X6, portals, on 35" - stocker

"Grammar is the body language of the internet."
The Pendy

Last edited by wilsby; 11-11-2003 at 11:52 AM.
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Old 11-11-2003, 01:16 PM   #4 (permalink)
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Beneath the crimped on ferrule, there are indeed hose barbs.

Your hydraulic shop may do fuel lines, but few do the metric bump fittings, although, this may be very different in Sweden.

As for skiing, the last time I went skiing, I broke my nose, both thumbs, dislocated several teeth and broke a ski.

Just imagine trying to buy a single ski.
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Old 11-11-2003, 01:20 PM   #5 (permalink)
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As for the hose clamps...

It is common practice in industry to use worm-gear hose clamps in many applications in much higher pressure environments than what we encounter here. Personally, I have no fears of the hose clamps failing.
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Old 11-11-2003, 01:24 PM   #6 (permalink)
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OK, we'll see tomorrow what they can offer.

As for buying single skis: People like you break them all the time, so getting a bargain on one ski should be easy. As long as it doesn't need to match your existing one.
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Christer Wilsby

Range Rover 4.6 Vogue 2001 - still shiny
Defender 110 CSW Td5 2001 - expedition/radical family wheeling
Suzuki LJ80 1982 - "Standard" trialer
Volvo C304/Tgb 13 6X6, portals, on 35" - stocker

"Grammar is the body language of the internet."
The Pendy
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Old 11-12-2003, 07:42 AM   #7 (permalink)
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I have about a dozen of those fittings let from D conversions. Rover sold a fuel filter update kit for the 1989 RRC. It had those fittings with correct clamps and such. Common to use these parts to correct your boo-boo.

Do swedish girls really expect IT on the first date? I'm hoping. Wils you got a younger sister?
JP
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Old 11-12-2003, 08:29 AM   #8 (permalink)
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Got what I needed from the hydraulic shop today. Should have left the loctitealike to cure some longer, though. Will dis- and reassemble, and let it sit overnight without pressure.

Yes, I have a little sister. Yes, things happen on the first date. The trick is to get that date, Pendy.
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Christer Wilsby

Range Rover 4.6 Vogue 2001 - still shiny
Defender 110 CSW Td5 2001 - expedition/radical family wheeling
Suzuki LJ80 1982 - "Standard" trialer
Volvo C304/Tgb 13 6X6, portals, on 35" - stocker

"Grammar is the body language of the internet."
The Pendy
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