1994.5 - 1997 7.3L Power Stroke Diesel  

"T" bolt hose clamps

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Old 09-04-2008, 09:05 AM
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"T" bolt hose clamps

This a newbie question but here goes anyways.

I got a set of the dieselsite cooler connector hoses and manifold connection hoses. They all come with T-bolt clamps with springs.

Question: How tight do you tighten them?

I asked my brother and he said to leave a little bit of spring in there and not bottom them out. Well I have a buddy with a 6.ooh and I looked at his and the springs are bottomed out. I looked at my '00 EX and they are bottomed out as well. Hmmm... So which is right? I am guessing that I tighten them down just till they bottom out but not sure. Help...
 
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Old 09-04-2008, 09:38 AM
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Neal, Not a newbby question, Not sure if I have the answer,
My guess is to let the spring do it's job...in other words, don't completely collapse the spring.
IIRC these are used where there is a lot of expansion and contraction.
They probably stop the clamp from slicing through the coupler when the intercooler pipes expand. That's my WAG
 
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Old 09-04-2008, 09:56 AM
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This may be a mistake I'll regret, but I'm going out on a limb and going to disagree with Cuda Jim. I'd say snug them down. In my opinion, the value of a spring clamp is that when the rubber material of the boots or hoses creeps leaving a dent in the rubber, the clamp doesn't get loose, the spring keeps tension on the band so that even if the OD of the hose does shrink slightly, the band is still snug. I would be much more concerned with contraction of the rubber than expansion. If it contracts, you might blow a boot, and with your big injectors, turbo, and tuning, you're probably running twice or more boost a stock SD IC boot sees.
 
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Old 09-04-2008, 10:23 AM
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I think the proper way is to snug them (compress the spring slightly to half way) and let the spring do the work. There might even be a torque spec on them. With that said I crank them down tight.
 
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Old 09-04-2008, 10:27 AM
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Yes I run about 34 psi now and not sure how much once the H2e goes in.
Interesting piece of info; On my EX the hot side tubes have springs but where the cooler tube connects to the y-pipe on the cold side it has the same clamp but no spring. Makes you go Hmmm...

Anyways still looking for a more definitive answer. Thanx guys for your reply.
 
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Old 09-04-2008, 11:29 AM
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I know in my experience that if the springs are not compressed and the clamp snugged that it will blow off. I have had this happen on a 3406 CAT and had to fix it on the side of the road. I believe that the spring is meant to apply pressure in the event of the clamp stretching or the Air to Air coupler shrinking. Just my .02
Justin
 
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Old 09-04-2008, 05:18 PM
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T-bolt hose clamps

I hope that this can be opened and will be of some help.

Rog
 
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Old 09-04-2008, 08:46 PM
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yup, it works. good find!
 
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Old 09-05-2008, 06:07 AM
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Well I did find this on that site
Spring load hose clamps - T-bolt
It says to leave the nuts 1-2 turns off of bottom out. Now I wonder why all of the factory trucks I have seen ar bottomed out. Maybe this is for this brand of spring and what we use them for may be different.

Still searching for the correct answer. Although we are getting closer.
 




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