what am i doing wrong help asap
what am i doing wrong help asap i am trying to change the valve springs on my car i have the crane tool but everytime i pressurize the cylinder and go to tighten it down the vavlves just go down with it i and getting a ton of air in there but they wont stay up what the hell ...... i cant get locks out
Before you compress them, or when just slightly compressed, tap the tops of the retainers with a wrench to unseat them, other wise they stick and push the valves down instead of just falling off as you compress the springs
TECH Regular
Joined: Sep 2008
Posts: 425
Likes: 1
From: Scottsdale, Arizona
Is your piston on TDC? That works the best. Plus do like the others have said smack it. I have never had a set drop doing a change like this.
Unless you have so much leakage you can't keep the bore "full" of air to maintain the valves to stay in place.
Also, when you have your engine on TDC take the breaker bar off cuz it will want to rotate the engine and you don't want that thing flying around.
Unless you have so much leakage you can't keep the bore "full" of air to maintain the valves to stay in place.
Also, when you have your engine on TDC take the breaker bar off cuz it will want to rotate the engine and you don't want that thing flying around.
I have a soft grip Snap-on wratchet and the rubberized handle works well. Couple taps and they break freeIt doesnt take much and your not trying to hammer them.
Put the tool on then add slight tension then tap the top of the retainer gently.
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You might also consider having a friend hold the breaker bar on the crank (maybe wedged against something to keep it from turning from TDC) as it is not very fun to pull heads in the tragic event of having a valve inadvertently fall all the way in to the cylinder. 
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