HarleyTechTalk

Technical Forums => General => Topic started by: djl on February 25, 2012, 03:28:57 PM

Title: Stuck Pressure Relief Valve
Post by: djl on February 25, 2012, 03:28:57 PM
Any creative methods for removing a stuck oil pressure relief valve that a magnet won't pull out and tapping on the cam plate doesn't help.  Next will  try application of some heat from a heat gun but nothing comes to mind if that doesn't work.  Maybe a stonger magnet but don't know wherer to get one.
Title: Re: Stuck Pressure Relief Valve
Post by: HV on February 25, 2012, 03:53:13 PM
Find a wooden dowel or pencil ...put it inside the valve plunger and hold a bit of side force on it...that should work as you pull out
Title: Re: Stuck Pressure Relief Valve
Post by: Billy on February 25, 2012, 05:02:43 PM
If HV's trick won't work, a 3/8-24 tap will bite into it. I had one so stuck I cut threads into it, screwed in a long bolt and had to pull and twist to remove it.
Title: Re: Stuck Pressure Relief Valve
Post by: rbabos on February 25, 2012, 05:07:52 PM
1500 grit paper on the od until it falls into the hole from it's own weight. Any stickiness of the plunger in the bore will cause erratic behaviour. Any of the mentioned extraction methods will work.
Ron
Title: Re: Stuck Pressure Relief Valve
Post by: Herko on February 25, 2012, 05:13:42 PM
djl,
Is this for the guy on HDF that's dealing with this today?
Just have him come over here and benefit first hand.
Title: Re: Stuck Pressure Relief Valve
Post by: Jeffd on February 25, 2012, 08:03:15 PM
use some air to blow it out.  spray brake cleaner in the side the plunger goes in and then compressed air thru the top the type with rubber nozzle to get a good seal.  I agree with Herko have him come over and get it first hand.
Title: Re: Stuck Pressure Relief Valve
Post by: DEW on February 27, 2012, 09:57:14 AM
Quote from: HV on February 25, 2012, 03:53:13 PM
Find a wooden dowel or pencil ...put it inside the valve plunger and hold a bit of side force on it...that should work as you pull out
I used a drill bit a couple thou smaller than the I.D and did the same.  20 minutes earlier, the techs at the dealer were telling me sorry your gonna need a new one!   :fish:
Title: Re: Stuck Pressure Relief Valve
Post by: War Horse on February 27, 2012, 10:26:07 AM
A screw extractor, the kind with the left hand twist, may also work.