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That looks pretty cool, nice work! I would love to travel around in one of those but having four kids and a business keeps me pretty stationary. Looking forward to the results on your IPR
Waiting on parts to come in, I was looking around the web yesterday for ways to pressure test the high pressure side of the 7.3l. I found this “IPR air pressure tool” on the web stating it will pressurize the high pressure side of the motor. Wondering what this is able to test for? Injector o rings? Cups? Hpop itself?
would this be a good tool to make for my tool kit?? Doesn’t seem to difficult to have made. Hose shop can supply the fitting, hose and ball valve... not sure what it tests for though..... why would one want to pressurize the high pressure side? What will pressurizing the high side show me?
I don't think it would test the cups but yes it would pump up the h-pop, hpop lines, and also test for blown injector o-rings. You can make these at a fraction of the cost we usually hook it up straight to the heads where the Hpop lines go in, this is usually done to test the injector o-rings
Also, IPR is NOT easy to get to in the vans. Would removing the turbo be too much more work? It would make so much more room.... looking from the dog house in the cab is the only way I can see any part of the IPR. Really I can only see the top of the plug. That’s it.
Also, IPR is NOT easy to get to in the vans. Would removing the turbo be too much more work? It would make so much more room.... looking from the dog house in the cab is the only way I can see any part of the IPR. Really I can only see the top of the plug. That’s it.
To be honest I'm not familiar with the Vans configuration. If you do need to pull the turbo I would recommend getting pedestal o-rings from riff Raff or diesel o-rings. I think the van turbos might be different than our trucks so not sure if the turbo to pedestal is the same configuration either but Bob at diesel o-rings or clay at riff Raff would know.
Turbo mounts are the same. The differences are in the exhaust housing for the most part. I bought one of those vans for parts and disassembled it, I don't think I would ever own one after that. I would recommend you perform the surgery to get it from the front. When you pull the IPR out, it's going to dump your HPOP reservoir into the valley. Go in from the front, suck the oil out of the reservoir and lay some rags or paper towels under it to catch the oil.
You could use that apparatus to charge the oil rail with air pressure but most of us just build our own kit. Here's mine including a circ saw tool that I modified to remove the HPO hoses. Or you can spend a bunch of money to buy a nicer tool to do the same thing. One of our members named Cody devised this test so we call it 'The Cody Test' and it identified a lot of weak injector O rings. One thing about this test though, you only have about 100 PSI of air pressure and if your O-rings don't fail until the get...say...1000 PSI of oil pressure, that test won't find the leak.
Turbo mounts are the same. The differences are in the exhaust housing for the most part. I bought one of those vans for parts and disassembled it, I don't think I would ever own one after that. I would recommend you perform the surgery to get it from the front. When you pull the IPR out, it's going to dump your HPOP reservoir into the valley. Go in from the front, suck the oil out of the reservoir and lay some rags or paper towels under it to catch the oil.
You could use that apparatus to charge the oil rail with air pressure but most of us just build our own kit. Here's mine including a circ saw tool that I modified to remove the HPO hoses. Or you can spend a bunch of money to buy a nicer tool to do the same thing. One of our members named Cody devised this test so we call it 'The Cody Test' and it identified a lot of weak injector O rings. One thing about this test though, you only have about 100 PSI of air pressure and if your O-rings don't fail until the get...say...1000 PSI of oil pressure, that test won't find the leak.
I ended up removing the turbo from its pedestal. Just not enough room to fit hands and tools at the same time going through the front. Made a lot of room removing the turbo though. Pulled the IPR no problem after that.
Definitely used an oil extractor first, removed all the Oil in the reservoir. Then pulled the turbo and got after the IPR.....
IPR ohmed out correctly at 10ohms. (Manual says between 5-20ohms)
I will definitely be making my own air pressure tool. Where does the “Cody test” insert to pressurize the high pressure side? At the head or in the IPR hole? (I see where you said it uses the hpop hoses fitting, nevermind)
I don't think it would test the cups but yes it would pump up the h-pop, hpop lines, and also test for blown injector o-rings. You can make these at a fraction of the cost we usually hook it up straight to the heads where the Hpop lines go in, this is usually done to test the injector o-rings
Originally Posted by jstihl
To be honest I'm not familiar with the Vans configuration. If you do need to pull the turbo I would recommend getting pedestal o-rings from riff Raff or diesel o-rings. I think the van turbos might be different than our trucks so not sure if the turbo to pedestal is the same configuration either but Bob at diesel o-rings or clay at riff Raff would know.
Didn’t see the dual replies! I replied to Walleye about the turbo being removed. Pedestal looks the same as the trucks. Not sure if same part number for o rings though...
Pulling the turbo made all the difference getting to the IPR.
I understand the use for the tool I asked about earlier now. Definitely a good tool to have, but not sure if I’d need it for my no start problems?
Didn’t see the dual replies! I replied to Walleye about the turbo being removed. Pedestal looks the same as the trucks. Not sure if same part number for o rings though...
Pulling the turbo made all the difference getting to the IPR.
I understand the use for the tool I asked about earlier now. Definitely a good tool to have, but not sure if I’d need it for my no start problems?
Personally I wouldn't spend that kind of money on a simple tool like that. Riff Raff makes a deadhead plug that goes in the IPR hole which I think is much cheaper so you might want to look into that. The cody test is basically hooking up air pressure to the heads to test for blown o-rings but you would have to have several really bad blown o-rings to cause your symptoms, always worth a shot to check them off the list though. If the pedestal is the same I'm sure the o-rings are the same. Might as well rebuild the IPR while it's out and see what happens. Walleye do you have any experience with the deadhead plug that riff Raff sells? I believe this is used to test the Hpop
Personally I wouldn't spend that kind of money on a simple tool like that. Riff Raff makes a deadhead plug that goes in the IPR hole which I think is much cheaper so you might want to look into that. The cody test is basically hooking up air pressure to the heads to test for blown o-rings but you would have to have several really bad blown o-rings to cause your symptoms, always worth a shot to check them off the list though. If the pedestal is the same I'm sure the o-rings are the same. Might as well rebuild the IPR while it's out and see what happens. Walleye do you have any experience with the deadhead plug that riff Raff sells? I believe this is used to test the Hpop
Personally I wouldn't spend that kind of money on a simple tool like that. Riff Raff makes a deadhead plug that goes in the IPR hole which I think is much cheaper so you might want to look into that. The cody test is basically hooking up air pressure to the heads to test for blown o-rings but you would have to have several really bad blown o-rings to cause your symptoms, always worth a shot to check them off the list though. If the pedestal is the same I'm sure the o-rings are the same. Might as well rebuild the IPR while it's out and see what happens. Walleye do you have any experience with the deadhead plug that riff Raff sells? I believe this is used to test the Hpop
Originally Posted by Walleye Hunter
Nope, not at all.
I’ve seen the IPR deadhead on RiffRaffs website. But that one blocks off the hpop completely right? I found another that has a threaded hole through the center. You can still pump up the hpop and line with it. (I believe)
I’ve seen the IPR deadhead on RiffRaffs website. But that one blocks off the hpop completely right? I found another that has a threaded hole through the center. You can still pump up the hpop and line with it. (I believe)
waiting on IPR rebuild kit. Will post back ASAP
I have no experience and didn't look into it. I'm thinking that the deadhead plug should fill the IPR hole and push full pressure to the HPO lines, where it can be measured. If you remove those hose fittings from the pump, be vewy, vewy careful with them. They don't take many ft lbs and get glued back in with green Loctite. The AL housing will strip out easily and you'll need to get another pump.
I have no experience and didn't look into it. I'm thinking that the deadhead plug should fill the IPR hole and push full pressure to the HPO lines, where it can be measured. If you remove those hose fittings from the pump, be vewy, vewy careful with them. They don't take many ft lbs and get glued back in with green Loctite. The AL housing will strip out easily and you'll need to get another pump.
good to know thanks! I will probably not bother with this test right away. Hopefully the IPR is my problem....
if I rebuild IPR and have same results (poor icp pressure and no start) should I just go ahead and buy a new one? No sure what the next step is if not successful rebuilding IPR. Also, just spray out the IPR “tube” with some carb clean or?
Hi all, IPR has been removed, cleaned, new O-rings and reinstalled. Removed the turbo to get to everything from the doghouse in the cab. Currently waiting on pedestal O-rings and needed to have my starter rebuilt.
The starter smoked on me, and the next time I went to crank it. It barely moved..... had it picked up by a local company. Turbo and Electric. 120 bucks....
