|
Why is the 98 Valve body tapered? |
Post Reply 
|
| Author | |
tbkahuna 
Member 
Joined: 24 November 2007 Status: Offline Points: 1 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Why is the 98 Valve body tapered?Posted: 24 November 2007 at 6:33pm |
|
I just bought a replacement valve body for a 98 custom. When I got it, I mic'ed it to see what it measured. It had a definite taper from the O-ring end to the other. Is that correct, or did I get a reject valve? What is the purpose of the taper? Does the inside of the power tube taper? |
|
 |
|
|
tallen702
Moderator Group 
Hipster before Hipster was cool... Joined: 10 June 2002 Location: Under Your Bed Status: Offline Points: 11859 |
Post Options
Thanks(0)
Quote Reply
Posted: 24 November 2007 at 8:31pm |
|
The taper is there for one of two reasons that I can think of. Either the mold in which the power-tube is formed is just made that way, or the tapering allows for easier insertion of the valve into the power-tube and keeps the o-rings from being damaged by forcing the valve into an exact fitting power-tube. My guess is it's the latter. The wider opening allows for the hammer and hammer o-ring to pass into the power-tube body and strike the poppet valve without causing undue wear on the o-ring, and it keeps the valve seal o-ring on the back of the valve from shredding upon insertion as well.
Ask any DMLCD/DM3 owner about o-rings and non-forgiving bodies. The tight tolerances on a Matrix marker means shredded o-rings whenever you put the spool and bolt assembly back in, or take it out. |
|
|
<Removed overly wide sig. Tsk, you know better.>
|
|
|
|
|
Post Reply
|
|
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options