CFM Intake boots- Warning/tip

TommyTooHi · 08-14-2012, 10:14 AM

Re-tighten the hose clamps after several drive cycles!!

Ok, so TWICE now I've been moofed by the hose clamps popping off of the silicone intake manifold connectors - and as we know, that causes a VERY rough running engine.
Both times I've not been far from home, thank goodness.

Question/study underway:
How many times / what is the frequency of a retorque of the hose clamps is required before they stay in place?

(Hope this is the last...)

-T_T

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TerryB · 08-14-2012, 02:19 PM

deleted

SVTF 03 · 08-14-2012, 02:42 PM

Thanks for the heads up. I had never seen any posts of this issue till now. I just ordered those today.

Macky21 · 08-14-2012, 03:19 PM

Been using them for a few months now, I'll take a look at them when I get home

BigRed03 · 08-14-2012, 09:03 PM

havent had an issue since i put them on in 2009....

you sure the boot and/or clamps are seated properly when you install?? Did you pull the fuel rail to get the most access? I remember getting the #4 cyl (drivers side) on last and it was the most difficult. the bottom edge didnt want to go around the upper intake (part not attached to head). I put the couplers on the head side first, tightened those clamps and then started with #1 and worked my way across.

TommyTooHi · 08-16-2012, 09:48 AM

Quote:

Originally Posted by BigRed03

havent had an issue since i put them on in 2009....

you sure the boot and/or clamps are seated properly when you install?? Did you pull the fuel rail to get the most access? I remember getting the #4 cyl (drivers side) on last and it was the most difficult. the bottom edge didnt want to go around the upper intake (part not attached to head). I put the couplers on the head side first, tightened those clamps and then started with #1 and worked my way across.

yup, and everything was snugged up tight, even new o-rings on the injectors for piece of mind...
I know it sounds like I moofed somewhere, but it's pretty easy to tighten hose clamps.

-T_T

BigRed03 · 08-16-2012, 10:00 AM

make sure you havent cracked the plastic IM runners on either side from over tightening.

again, I feel you arent getting the coupler onto one of the runners properly/enough and the hose clamp doesnt have enough bite to hang on for long.

NJSVTGUY · 08-16-2012, 09:33 PM

I use the "stock" custom molded- to- fit hoses that Ford provided for all three of my SVT's, NA, Turbo, and SC. Ford clamps are even sweet with the tight thread count.

Mile30 · 08-16-2012, 09:42 PM

I had the same issue with an Iceman intake (before I switched to CAI)... same deal with brand spankin' new VF polyurethane mounts; checked 'em a week later and two of the mount's bolts were out a few threads.