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That very well could be. I’ve been trying to refrain from thinking that because of how big of a PITA it’ll be to get to, but it’s a possibility. I’ll have to take a look this weekend. I wish I had the valve to see what it looks. It blew off on the freeway and I have no idea where it went. I just...

Yep I did. I put a plug in a couple weeks ago. The valve blew out completely. It wasn’t even in the engine bay anymore when I went to plug it.

Gotcha. I’ll have to dive into it deeper this weekend and try to get to the bottom of things. I got it warmed up yesterday while driving around began to giver ‘er the onions. It did the weirdness again right around 9.5lbs of boost. Usually when I let off the accelerator and step on it again, it...

I finally got around to taking a look at things. I twisted the linkage back towards stock just one full turn. I’m making 9lbs of boost now and the weirdness hasn’t happened as of yet. I haven’t really pushed it too hard either. That’s usually when the problem would occur. I didn’t see any...

I’m on it! Great little page we’ve got goin on there.

@Growlerbearnz so I’ve swapped out all of the clamps with proper hose clamps, heli-coiled the injector pump, changed fuel filter, and still having the same issue. I never hear a “whoosh” to indicate boost leak. Could the rev limiter in the IP be causing this? I don’t have a tach, so I don’t...

I have a feeling that’s where my boost leak is. I put hose clamps on all the fittings and still the weird leak at heavy loads. I was thinking of either of those fixes are the next move. I’ll try the heli-coil first. As always, thanks for your help.

@Growlerbearnz do you know the torque spec for the boost compensator?

It doesn’t seem to be. I’m thinking I need to track down a boost leak.

Early this morning on my drive is when I blew the relief valve. It was completely gone. The only reasons I noticed that are I lost all boost and it sounded like I had a hole in my exhaust. I’m trying to figure out how it unthreaded itself. I never heard it blow off or thought of it until it was...

Is the remedy to add a boost controller instead of adjusting the actuator?

That crossed my mind too, but I thought it would just stay boosted if the watergate were to stick open.

I haven’t heard any extra noise. I was expecting to hear some sort of whoosh, but nothing that I’ve noticed. I’ll have to take apart the IP again and really inspect it all. All the hoses currently have the pinch style clamps. I might swap those out for regular hose clamps. I’ll take a good...

My new D4BF in my JB500 is finally fully broken in. I thought it’d be a good idea to start tuning it. First thing I’ve done is tightening the watergate actuator to boost 10lbs. That’s been great. I figured I should try to get a little extra fuel at the top end of boost. I spun the plunger to to...

Haha darn! This truck is weirder than I thought.

Do you have a front diff housing by chance?

Will do. Thanks for your help. Much appreciated in this frustrating time

I will start looking into this. I just found out that the housing for the front diff is worn out too. Did the raider or montero use the same housing?

I’m finally getting around to working on the front diff. I’m wondering if parts from an early montero diff are interchangeable with my JB500. I could’ve sworn I read somewhere on here that it is the case, but cannot find it now. Does anyone know for certain if this is true?

Welp, that makes sense. Time to start creating my parts list.