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Old 09-10-2010, 11:40 AM   #1
Bad Noodle
Scooby Specialist
Member#: 174442
Join Date: Mar 2008
Chapter/Region: Tri-State
Location: NNJ
2007 SuperWagon
I don't spell well

Default Checking valve sraightness - ghetto way

Say you bought some used valves and want to make sure they are straight before install. What do you guys think of doing this:

Straight valve (video)
Bent Valve (video)
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Old 09-10-2010, 11:56 AM   #2
Scooby Newbie
Member#: 241311
Join Date: Mar 2010
Chapter/Region: South East
Location: GA ATL SON
95L V6WRXSTI type R


hahahahah i would have never thought of that
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Old 09-10-2010, 11:56 AM   #3
Scooby Specialist
Member#: 125304
Join Date: Sep 2006
Location: Crawford, TX.

Try to find a guy that reloads cartridges he use a tool to check the runout of brass cases. Two small veeblocks will also work. A drill has too much wobble. A suby valve can be bent only a small amount and it will seat by bending the stem. It will show good leakdown and compression but will be noisey in the seating sequence and sound like the clearances are wrong. It might be better to just take the valves to a shop and pay them to check them. You can buy the tool but if you aren'y going to be doing this a lot the shop will be the cheapest way. My son's sti had all eight intakes bent and it still ran good with good leakdown and compression. Some were only bent as little as .015 but you could see where they kissed the edges of the eyebrows after close observation. He had a little extra valve train noise at 3500 was the only real symptom.

Valve concentricity gauge

Last edited by charliew; 09-10-2010 at 12:12 PM.
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Old 09-11-2010, 09:04 AM   #4
Former Vendor
Member#: 107290
Join Date: Feb 2006
Chapter/Region: South East
Location: Mia. FL.

Nothing wrong with what u r doing, i use a makita cordless drill (flat bottom) so it sits sturdy and put the valve head close to something......anything! When it turns it shows the valve head movement like it's in a lathe.
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Old 09-11-2010, 11:29 AM   #5
Scooby Guru
Member#: 173241
Join Date: Feb 2008
Chapter/Region: TXIC
Location: Houston, Tx
2002 s256 twinscroll
now with one more gear


at the shop i go to they do it the same way just use a drill press
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