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Leaking 2nd from the bottom valve?
So have a leaky valve on the 5 port block. Swapped out the valve and solenoid. Solenoid is new that I swapped in, but dont have any new valves with me. Went from a bad leak to a slow leak.
Is there a valve that isn’t needed for road mode on the 5 port block that I can swap out to the 2nd from the bottom valve and make sure Im okay going down the road?
swapped out all the valves about 18 months ago and the entire block last spring. System inspected about every couple of months for water with no sign so thinking it’s just bad valves as not seeing any sign of water in the system (not that that means anything).
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8 Replies
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The center valve is for road height Charles, you can swap out one of the other. The center valve gets hot and they fail sooner than the others.
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So the center valve is road mode. What are the other four valves for? As I mentioned, the second one up is causing issues (venting air).
Thanks
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articles section above toward the end of the list there is a article writen by Jon. It has pictures with it on later pages. Explains how prevo set it up. The converter may have changed some controls but it does match my 98. Bob
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Good suggestion from Bob. I think the 2nd down is the front.
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Charles,
You really have no choice but to replace the valve sooner, rather than later because it always has air pressure to it from the manifold. It is either going to leak air through it to the Norgren valves it controls, or leak out the center cap (the red one).
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Any minute spec of dirt on the plunger will cause it to leak.
You can actually take the valve apart and clean it. Just four screws. Don’t lose the little O ring that seals the valve against the manifold. A dab of grease will keep it in place on reassembly.
Gerald
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Gerald always writes good advice, but I want to make a simple correction so you understand something.
He is absolutely correct, but there are two O rings. An outer one and a relatively small inner one. Make sure you are not just expecting one.
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Yep on the 2 o-rings and a little assembly grease to keep them in place while installing.
Learned that technique with o-rings on my race bike cylinder heads. Just enough to make the o-rings a little tacky so they stay in place while you get the part in place and tightened up.
Had one good valve left to get me moving. Will get some extra valves to keep in the parts bin as I used my last one for this. All the others are older (this was only a year old) and I dont trust them as spares.
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