Wastegate flopping back and forth?
#1
Wastegate flopping back and forth?
I disconnected the wastegate actuator rod and the post and lever to which it attaches now just flops back and forth with no resistance. I presume this *is* the wastegate?
Does this mean my wastegate spring is broken/missing? Can I wire it shut for test purposes or put a carburetor spring on it, as suggested in this forum) and/or hook the (adjusted shorter) rod back up to it?
I can generate no more than 15 psi of boost at 7000' elevation - that's how I got started down this path. What is the real long term solution?
Thanks!
Steve
Does this mean my wastegate spring is broken/missing? Can I wire it shut for test purposes or put a carburetor spring on it, as suggested in this forum) and/or hook the (adjusted shorter) rod back up to it?
I can generate no more than 15 psi of boost at 7000' elevation - that's how I got started down this path. What is the real long term solution?
Thanks!
Steve
#2
#3
Look at Clays turbo removal/install instructions. Figure 4. Is this where you disconnected?
http://www.riffraffdiesel.com/mm5/RE...structions.pdf
What boost and EGT are you seeing with stuff disconnected?
http://www.riffraffdiesel.com/mm5/RE...structions.pdf
What boost and EGT are you seeing with stuff disconnected?
#4
My sig line shows the mods - so I'm pretty much running stock. I disconnected the rod that goes from the dashpot on the back of the engine (the one with the pressure line connected to it).
It's the linkage shown in this thread: https://www.ford-trucks.com/forums/1...ore-power.html
The truck did poorly on the dyno/emission test (171 hp in 3rd gear at 60 mph) and the shop said that most will show low 200s for horsepower. My buddy's 2000 truck gets 215 hp. I did generate 191 hp in 2nd gear at 60 mph.
I have a temporary boost gauge and no EGT gauges - those are coming next.
I did build and use a boost detector and I believe I'm sealed up otherwise.
Thanks!
It's the linkage shown in this thread: https://www.ford-trucks.com/forums/1...ore-power.html
The truck did poorly on the dyno/emission test (171 hp in 3rd gear at 60 mph) and the shop said that most will show low 200s for horsepower. My buddy's 2000 truck gets 215 hp. I did generate 191 hp in 2nd gear at 60 mph.
I have a temporary boost gauge and no EGT gauges - those are coming next.
I did build and use a boost detector and I believe I'm sealed up otherwise.
Thanks!
#5
Yeah, that's the wastegate, and with the linkage in the photo http://i267.photobucket.com/albums/i.../photo-148.jpg,disconnected it's hard to see that you''ll build any boost. You'll need to reconnect to help hold the gate closed. You may be able to wire or spring it, I just don't know how. Like Ken said, I don't think 15 is that far down from avg stock boost. Hopefully more will be along. Good luck.
#6
#7
I just realized that the waste gate spring is inside the actuator. I thought it was inside the turbo housing. My mistake. I also assessed that my linkage rod is properly adjusted and so the rod is not holding the waste gate open. I have confirmed what I set out to learn, so I will reconnect the clip and put it back together. Thanks for the helpful advice and links.
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#8
From the factory it opens a bit too soon, so having it tightened up a bit is a good idea. It will help you keep a little more boost, and that isn't a bad thing at all. You don't have to worry about the turbo until you approach 30psi with the stock housing. I can run my van turbo over 35psi with no issues after 2 years...
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viperbluelx
1999 - 2003 7.3L Power Stroke Diesel
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01-16-2008 01:08 PM