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Drooling Piston

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Drooling Piston last won the day on June 18

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About Drooling Piston

  • Birthday 12/13/1962

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  • Location
    Tacoma, WA
  • Interests
    Family, Dirt bikes, Camping & Diesels

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  1. Drooling Piston

    Stock overload springs vs airbags

    Thanks for the feedback!
  2. Drooling Piston

    Stock overload springs vs airbags

    When I first bought this truck (used), it had a cheap version of Helper springs bolted on it and they made the ride TERRIBLE. I took them off and threw them away. So I am kinda shy of aftermarket helpers. I did see these supersprings, but wasn't sure they would really act as advertised. I'm glad to hear you know several people who have installed them and like them. It sounds like they would act like the factory, top over load springs, in that they don't engage till the truck squats. Did the guys who installed these, say anything about them being noisy? do the factory springs bang & clank against the superspring rollers or shackles? Thanks!
  3. Drooling Piston

    Stock overload springs vs airbags

    The top, overload spring, frame brackets seem as hard to find as hens teeth. Has anybody had any experience with a company called General Spring out of Kansas City? they have an upgrade spring pack with an extra leaf in it. And at a very reasonable price for a whole spring pack and bushings. https://www.generalspringkc.com/product_p/34-1343hd.htm
  4. Drooling Piston

    Stock overload springs vs airbags

    Thanks for the replies! i will look for a set of overload springs and frame brackets to help carry more of the load and (if they will still fit) put my air bags back in to keep things level and adjustable.
  5. I installed airbags on the rear some time ago. I got into a discussion with someone, debating how the stock overload springs would probably give a better ride because it spreads the load out to 2 points on the frame and those points are farther apart vs the single lift point of the airbags. all of that will add stability to the ride, when u have enough weight in the truck for them to touch. and he thinks the airbags (depends on how much air u put in and how much weight u are carrying) defeat part of ur springs and give u a bouncier ride. what do u guys think? does anyone have a set of those factory overload springs and/or brackets u are willing to sell?
  6. Drooling Piston

    August 2019 Bomb party Saturday the 17th

    We won't be making it this year. Momma wants to celebrate her birthday at the ocean
  7. Drooling Piston

    Sled pulls at Skagit Speedway!

    it looks like it would be fun to watch! unfortunately, I already have a prior commitment for that weekend. Is this an annual event? that I/we could make a plan to attend next year?
  8. Drooling Piston

    compounds and an exhaust brake??

    Well I decided it was time to do something. Good or Bad I had a smaller oil feed line made up with #4 hose and the #6 fittings to mate up with everything else I had already plumbed in there. After a few short test runs, all looked fine, no oil leaks and it didn't smoke the turbo due to a lack of oil. I thought about asking on this forum if anyone needed something hauled over the pass, but, what if I had a break down or whatever was being hauled wasn't very heavy, so I didn't post anything but took off on a test run by myself with no other time constraints or expectations. Sunday morning I put tools, coveralls, boost boots, hoses, clamps, jacks etc in the truck, loaded 3 yards of sand into the dump trailer and set out on a test run. I stopped at the Federal way truck scale on I-5, about 6am, while they were closed, and weighed my truck & trailer. combined gross weight was 17,780lbs. up hywy 18 over Tiger mountain, up I-90 over snoqualime pass, the other climb out of Cle Elum, I think its called Rye Grass, turned south on hywy 82 for Yakima, with 3 more 2500ft elevation climbs, back to the west on hywy 410, over White pass to I-5 and back to Tacoma. I pushed her hard and didn't let her get under 60mph up each climb and 65-68mph everywhere else (that I could, depending on traffic), using the exhaust brake on the way back down those hills. The trip was about 360 miles. The only trouble I had was a tire blew out on the dump trailer. Reducing the volume of oil, to that one turbo, fixed its oil leak issue.
  9. Drooling Piston

    compounds and an exhaust brake??

    I've never thought about it and don't know for sure, but I would assume there is pressure inside the exhaust housing as well as back upstream for the whole exhaust. The VGT is not what is leaking though. No, I haven't tried to watch what might come out of the oil filler cap while driving. you mentioned a 3/4 or 1 inch drain line, I used a #10 hydraulic hose and fittings. They are a 5/8 ID. The adapter, that bolts to the bottom of the turbo, and has a #10 male JIC fitting, Looked to be about 1/2 inch ID. The drain hose from the turbo to where it enters the block is nearly a straight fall, with just a slight bend. So, the adapter, on the bottom of the turbo, may be my restriction, at only 1/2" ID. https://www.amazon.com/dp/B07SG495ST/ref=sspa_dk_detail_3?psc=1&pd_rd_i=B07SG495ST&pd_rd_w=uY2jY&pf_rd_p=8a8f3917-7900-4ce8-ad90-adf0d53c0985&pd_rd_wg=MQfmV&pf_rd_r=3BJ3WXMDJGXWXS8RPXXR&pd_rd_r=c379e2f0-8ddb-11e9-bd2f-f9fbdb80feb9
  10. Drooling Piston

    compounds and an exhaust brake??

    Oil leaks, both exterior and inside the compressor housing, putting oil into the boost pipes
  11. Drooling Piston

    compounds and an exhaust brake??

    I got everything cleaned up. figured out a way to secure an inexpensive boroscope, with its own lights, under the hood pointing at the turbo. This scope has a WiFi transmitter. My son sat in the passenger seat, looking at my I-pad while I drove and put the truck through different scenarios. The oil is coming out of the exhaust side of the turbo and wetting the center section. It seems to be happening under all, higher RPM deceleration, conditions. When consulting the very wise Google. The new working theory is, I need to reduce the volume, of the oil supply to the turbo. There were several threads, on car forums, about this same scenario, happening on deceleration. I used #6 sized hydraulic hose and fittings for the supply and #10 for the drain. Those other forums said when they reduced the size of the supply line down to a #4, the oil leak disappeared. On my build thread, there was discussion about using a "T" or not on the supply line. Since I did use a "T", where 1 port is divided to supply oil to both turbos, I never considered the possibility that I could still be over oiling this turbo.
  12. Drooling Piston

    compounds and an exhaust brake??

    Yes, the oil drain goes back into the oil pan above the oil level. Actually, the top turbo (the HX35) drain, is plumbed into the stock drain port, in the block. I have not done anything with the crankcase ventilation, so it is just the stock, road draft tube, that drops down, near the left rear of the engine. When the trailer is pushing me down the mountain, and she is revved up to about 2,000 RPMS, and the exhaust brake is on, the exhaust back pressure can hit 50+ psi of exhaust pressure. I understand your working theory here, and it is only one that makes any sense to me. So, what can I do to . . measure crank case pressure? drill and tap a valve cover and move one of my boost gauge sending units there so I can monitor it while driving? then I can put a 1/8 pipe plug in it when I''m done. or maybe I can drill and tap the #10 JIC 45* elbow at the bottom of that oil drain line, put the sending unit there, then I would see the difference, in oil pressure, in that return hose, with and without the brake on. provide extra venting/breathing? drill a valve cover and put a gas engine style breather on top? and why just the HX35? its drain hose is longer since it is the top turbo. Why not both turbos? I has thought about trying to secure a Go Pro style camera, under the hood, pointing at the turbo, to see if I can get evidence of where the oil is coming from. The spray patterns (and shadows of them) suggest its coming from the center section of the HX35 but I can't recreate it in the driveway. Even if I was sure of where it is coming from, I didn't have a clue as to the why? Especially after having that turbo resealed and rebuilt. Thanks for the reply! it gives me something to think about.
  13. I built a small set of towing compounds with the HX35 over a He351VGT. They are working fine and giving me what I wanted which was quick spool up. With my 13spd tranny I really benefit from the quicker spool up. Anyway, The VGT has an exhaust brake feature in it. When I use it, it seems to cause oil to spew out of the HX35. I took the HX35 out and had it rebuilt at ADP, in Kent. I just came back over Chinook pass with my 11,000lbs camp trailer and there is an oily mess again. Has anyone ever experienced something similar ? Can anyone enplane why this might be happening? Is there, Something about slowing the flow & increasing the back pressure, of the exhaust gas, through the HX35 while still force feeding it some (even though small) amount of air from the VGT, lets oil blow through the seals? Thanks
  14. Drooling Piston

    Builing a compound set up

    I found it! I've been tinkering and tweaking adjustments. As it turns out, at first I had too weak a spring on the VGT control set up. as soon as I reved her up the air cylinder was over powering the spring (before she made much boost) and was pushing it almost wide open. So my VGT was acting like a big turbo. Late to spool up and little to no exhaust restriction. I think this is why my overall boost numbers have looked lower than they used to with a single turbo. I put a stiffer spring on there and it was holding it closed too far, too long, putting the turbo into the exhaust brake mode. I put on a longer spring that was stiffer, Now, I have the 16-17 hundred RPM spool up I was looking for. and with the little bit of exhaust restriction this added, my boost numbers are back up to what I remembered them to be. I'm much happier with this set up now.
  15. Drooling Piston

    Builing a compound set up

    Not much. After my truck being out of service for a while, I needed pellets and propane. I hooked up my dump trailer, put some empty propane jugs in the truck, filled up two 24 gallon and three 5 gallon propane tanks, dumped a load of tree trimmings out of the trailer, at the dump, my empty weight on the way out of the dump was 10,000 lbs., bought a pallet of wood pellets (bringing the estimated combined gross weight to 12,000 lbs). Then I ran it up and down the hills, close to my house, from Sumner to Bonney Lake on hywy 410 and then Puyallup fair grounds to the top on hywy 512, before heading home home. She pulled the hills pretty effortlessly, I could accelerate, in the middle of the hills, at will. Gauges showed only 10-15 lbs of boost needed. EGTs looked great. I know pressure is the result of a restriction to flow. If I am remembering correctly, the boost pressure numbers I'm seeing now are actually lower than what I used to see. I didn't think adding a second turbo opened up the exhaust, and reduced air flow restriction. I don't see how this project, reduced any restrictions, to increase flow, thus lowering boost pressures? I had set the external waste gate, to open, at about 18 psi, so, that is not even opening yet, at these boost pressures. These numbers surprise me (if i'm remembering correctly). Either way, she is running/pulling real strong.