83Starion-11 Posted April 10, 2012 Report Share Posted April 10, 2012 I hear many or most people do this to their conquest, can you do it to an 83' as well (im guessing so because of same engine), and what are the benifits for doing this...I guess im just not sure what it does lol or how it even works. Link to comment Share on other sites More sharing options...
CaliConquestAlex Posted April 10, 2012 Report Share Posted April 10, 2012 (edited) I believe the benefit is that you are replacing something that is prone to failure. Basically the kit is just a set of bolts that screw in place of the jet valves. Edited April 10, 2012 by CaliConquestAlex Link to comment Share on other sites More sharing options...
83Starion-11 Posted April 10, 2012 Author Report Share Posted April 10, 2012 is this easy to do haha? Link to comment Share on other sites More sharing options...
The Rabbit1 Posted April 10, 2012 Report Share Posted April 10, 2012 jet valves are knowing for leaking by and breaking off, hence prone to failure, you will have to take off the valve rocker assembly, you need a valve cover gasket set and the JV eliminator kit, shouldn't take but max 2 hours for even a novice to do while working at a leisurely pace, with a beer in one hand. I'd recommend changing valve springs and valve seals while your in there, that will take a bit longer, but well worth it. get the stuff from "Dad" on here. Link to comment Share on other sites More sharing options...
83Starion-11 Posted April 10, 2012 Author Report Share Posted April 10, 2012 ok, i actually need to change the valve seals so ill do everything at once while i have everything torn apart Link to comment Share on other sites More sharing options...
vbrad511 Posted April 10, 2012 Report Share Posted April 10, 2012 Jet valves are like anything else. They're prone to fail IF they're not taken care of. They carbon up, the seals go bad, every once in a great while one will lose a head. Mine have got about 180,000 miles on them. I've had them out and serviced twice, meaning cleaned the carbon off, inspected the springs, replaced the seals. What's more prone to happening is the head cracking from the heat. With the jet valves installed they allow a bit of cooler air to travel through the head. Pull the JV's and put a steel slug in there and now not only have you eliminated that air, you've also introduced that steel, which expands and contracts (heats and cools) at a different rate than the aluminum around it. A lot of guys run the eliminators. My thinking says it's better to maintain what Mitsu spent countless hours developing. Link to comment Share on other sites More sharing options...
The Rabbit1 Posted April 10, 2012 Report Share Posted April 10, 2012 With the jet valves installed they allow a bit of cooler air to travel through the head. Pull the JV's and put a steel slug in there and now not only have you eliminated that air, you've also introduced that steel, which expands and contracts (heats and cools) at a different rate than the aluminum around it.which is why i'm leaving mine alone. if the head cracks I'll get a ported njv head, till then I'll just leave it be. Link to comment Share on other sites More sharing options...
SunStreaker Posted April 10, 2012 Report Share Posted April 10, 2012 I had a set of Jet Valve Eliminators and I had a cracked head, but my head cracked between the valves barely visible and on the #2 cylinder. It did overheat because of a blowhead gasket. The jet valves arent terrible themselves but they tend to fail, WHY because people dont maintain them or inspect them which should be done. People are not used to their upkeep so when they fail they blame them even though no maintenance was done to keep them running. Some people do it because they wanna eliminate that maintenance. Link to comment Share on other sites More sharing options...
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