Failing Blowoff valve!!!

spoon

Wrenching to ride is half the fun

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Kootenays, BC

• Jan 9, 2012

• #1

Just a quick check to see if anyone else has experienced the Tial lookalike blowoff valves that Twisted, OVS and others have used in their kits to fall apart and lose the 2 inch aluminum disc into the intake and ultimately into the throttle bodies to end up in the reed cage. Have seen this with 2 now and one with disastrous results this past weekend. Near death experience. Not kidding here. I advise anyone with this style of valve to inspect and remove and loctite all removable internal parts freshly. Will post pics later.

 

mattymac

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• Jan 9, 2012

• #2

gotta hand it to the overseas manufacturers, their knockoffs are getting harder to spot!


http://www.tialsport.com/realvsfake.html

 

spoon

Wrenching to ride is half the fun

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• Jan 9, 2012

• #3

pics of valve and damage

Here are pics of valve, some of the damage to both sleds and where piece ended up. Whole thing happened in space of 50 ft and to start I was only going 10-15 mph but estimate impact at 20-30 mph. Nobody hurt but could have been, I was on sled trying to stop it until just before impact. Throttle cable wasn't attached to flipper after disc stuck in throttle plates.

 

H

HCM

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• Jan 9, 2012

• #4

Ouch is all I can say there that sucks.

 

A

Air_time24

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• Jan 9, 2012

• #5

Yeah that's the last thing you want is parts of B.O.V in the intake, Scary ****!

 

Vertical-Extreme

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• Jan 9, 2012

• #6

scary Man, Glad your OK

 

S

sledhed88

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Dec 13, 2007

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• Jan 9, 2012

• #7

thats exactly what happened to the sled we just bought. it didnt make it threw the throttle boddies though. i put it back together using red loctite but still leary of using it

 

S

SHOP!

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Apr 21, 2011

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• Jan 10, 2012

• #8

sledhed88 said:

thats exactly what happened to the sled we just bought. it didnt make it threw the throttle boddies though. i put it back together using red loctite but still leary of using it

Click to expand...

Get rid of it. Them guys need to step it up and use some good parts in there kits before someone gets hurt worse.

 

E

Eli

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Jul 9, 2002

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Omak, WA

• Jan 10, 2012

• #9

Glad I have mine adapted to 1" hose now. The disc can't go to the throttle bodies. Now I see that it doesn't say Tial on it. All along I didn't second guess it-till now! Works ok, though.

 

Tonysnoo

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• Jan 11, 2012

• #10

My OVS BOV doesn't look like that.

I think the oriface into the intake is too small for any internal parts to get in mine, but everyone should certainly check their setup. Sure makes a good argument for the piston style over some of the diaphram styles.

Another thing I look at every chance I get is the butterfly screws in the throttle bodies. I know they are staked, but we are putting some big force against them.

Great heads up.....sure glad you're OK.....wish your sleds were too!

 

J

JROD

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• Jan 12, 2012

• #11

Sure don't hear much out of the manufacturers on this one.....

 

M

m8lovin

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vernon bc

• Jan 12, 2012

• #12

Just checked mine. Its scary how easy it was to turn off. Im sure it would not have been long before it came apart. Thanks for the heads up!

 

E

Eli

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Omak, WA

• Jan 12, 2012

• #13

I can't believe these kits have knockoffs. Do the true Tials have a disk on threads, too?


Sent from my iPhone using Tapatalk

 

P

product tester

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• Jan 13, 2012

• #14

I would like to thank spoon for this thread we have seen 5 of these come apart now and we have changed our bov to a soild pistion and an adjustable spring rate. for low and high boost.

 

backcountryislife

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• Jan 13, 2012

• #15

SHOP! said:

Get rid of it. Them guys need to step it up and use some good parts in there kits before someone gets hurt worse.

Click to expand...

Says the guy who runs BD stuff...



Sorry shop, I just couldn't resist!!! I can't tell you how many people I know who have had an incident because of BD stuff (not that all of them don't have their own issues!)