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Thread: Big Single Build

  1. #41
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: Big Single Build

    I had to get a head line honed because I had the rocker shaft upside down on my first engine build and that blocked all oil flow to the camshaft. Seized and broke the cam pin off too! Only line honed the one that seized. The other one just looks really rough :P
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  2. #42
    Garrett booster
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    Re: Big Single Build

    Hit up the dealership, turns out idiots did not even come close to pulling the right parts.

    So I am on the lookout for these part numbers:
    MD150785
    MD125669

    Apparently MD125669 is hard to find at dealers, two dealers in the country have this part and 9 of this part total in the country.



  3. #43
    turbo addict
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    Re: Big Single Build

    I can't tell what the first one is. Is it the end cam plug? If so, that is available from the aftermarket. The rocker shaft springs...two words:junk yard. It might be possible for them to wear out, but I doubt you will have any trouble with used ones unless the donor engine went through some serious hell. Or youcould do what the Ford 4.0 guys do and make precision solid spacers to eliminate the springs. However it has been argued that our engines really will not make any apreciable difference.

  4. #44
    turbo addict
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    Re: Big Single Build

    Like I said before, I think I have some rocker springs. Just let me know. As far as I can tell, their order does not matter but I may be wrong. Ive never had an issue mixing and matching the springs.

  5. #45
    Garrett booster
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    Re: Big Single Build

    Quote Originally Posted by Reaper1 View Post
    I can't tell what the first one is. Is it the end cam plug? If so, that is available from the aftermarket. The rocker shaft springs...two words:junk yard. It might be possible for them to wear out, but I doubt you will have any trouble with used ones unless the donor engine went through some serious hell. Or youcould do what the Ford 4.0 guys do and make precision solid spacers to eliminate the springs. However it has been argued that our engines really will not make any apreciable difference.
    Yes, the cam end cap appears to be difficult to find OEM. The one problem with the junkyards in the area is they don't have a lot of 6G72 engines and especially SOHC 12 Valve engines, so I can't get a rocker spring.

    Quote Originally Posted by Sundance 6g72 View Post
    Like I said before, I think I have some rocker springs. Just let me know. As far as I can tell, their order does not matter but I may be wrong. Ive never had an issue mixing and matching the springs.
    If you have one, I would be willing to pay for it to be shipped.

  6. #46
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    Re: Big Single Build

    Do you need one or two? Ill go check my pile of parts when I get a chance today.

    We have loads of sohc g72 engines around here. Lots of the dodge vans had them.

  7. #47
    Garrett booster
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    Re: Big Single Build

    Quote Originally Posted by Sundance 6g72 View Post
    Do you need one or two? Ill go check my pile of parts when I get a chance today.

    We have loads of sohc g72 engines around here. Lots of the dodge vans had them.
    I need one.

    Maybe if you can find a camshaft end plug too...

  8. #48
    turbo addict
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    Re: Big Single Build

    I may have the plug too. Ill let you know soon

  9. #49

    Re: Big Single Build

    If Sundance6g72 doesn't have the springs, I have some. Rockauto.com stocks the end plug http://www.rockauto.com/catalog/more...488&cc=1089626 $2.60 per plus shipping. I may have some left over from head gasket sets.

  10. #50
    turbo addict
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    Re: Big Single Build

    I found some springs and a new cam cap. Click image for larger version. 

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  11. #51
    turbo addict
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    Re: Big Single Build

    Just pm me an address and I'll just charge ya shipping

    Edit:I posted a picture on previous page. That should be what you need.

  12. #52
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: Big Single Build

    Problem with 3si.org is that they teach people to only buy OEM parts.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  13. #53
    Garrett booster
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    Re: Big Single Build

    So while cleaning the pole barn, I found the missing spring for the camshaft assembly so I will put that on soon.

    Not really care related, but thoroughly cleaned the pole barn and moved the car a little bit:








  14. #54
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    Re: Big Single Build

    Well I have two springs in that package for you anyways haha. Along with the cam end plug.

    I only had like 50 springs so its okay

  15. #55
    Garrett booster
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    Re: Big Single Build

    Here's what I did on Sunday, not really much of anything, but fabricating the heat exchanger mount to the frame was a big deal. Cleaned up a few parts, cleaned the oil pan.







    - - - Updated - - -

    The stock sender is a placeholder for that spot for now, I need to get a special line run for that to the turbo oil feed. I also need to drill and tap the pan for the return line while I have the pan off.

    I was mocking up a few things:








    Pesky oil pump seal kept rolling over on itself, will need to use oil to lube the seal and prevent it from binding.

  16. #56
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    Re: Big Single Build

    Are you going to replace that oil pick-up? If not, I highly recommend it.

    I also do not recommend having any RTV in the oil pan, or anywhere in the oil system. It has a nasty habit of the bond breaking down and then falling into the pan or plugging stuff up, which can lead to making a bunch of scrap.

  17. #57
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    Re: Big Single Build

    Quote Originally Posted by Reaper1 View Post
    Are you going to replace that oil pick-up? If not, I highly recommend it.

    I also do not recommend having any RTV in the oil pan, or anywhere in the oil system. It has a nasty habit of the bond breaking down and then falling into the pan or plugging stuff up, which can lead to making a bunch of scrap.
    67G72 engine manual says to use thin layer of RTV on gaskets and it is also recommended to use RTV on the entire oil pan.

    The oil pickup tube is in good shape, I popped the screen out more and cleaned out as much sludge as I could. There wasn't any bearing material in this engine anywhere so I don't see a problem. Also you can't buy an Oil Pickup Tube anywhere.

    Also, RTV black is oil resistant. RTV Red is a no-no.
    Last edited by boostedsohc; 04-29-2014 at 05:02 PM.

  18. #58
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    Re: Big Single Build

    You can get a gasket for the pan but its usually a pain to install. I prefer to rtv the oil pan into place just like the OEM did.

    For the other gaskets I just copper spray them but im sure its unnecessary. I dont see a problem with RTV on them as long as its used sparingly. The stuff loves to spread out a good amount once tightend down.

  19. #59
    turbo addict
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    Re: Big Single Build

    So what I meant, and maybe I wrote it wrong, was I don't suggest using RTV in suction or pressurized areas of the oil system.

    Yes, the OEM seals the oil pan with RTV. I did the same when I resealed my engine. As long as it's used correctly, there's no problem there.

    I have honestly forgotten how the oil pick-up is installed onto the oil pump. Does it have an o-ring in the receiver hole of the pump, or dies it rely solely on the flange and the seal between the flange and the pump?

    RockAuto lists the oil pump screen by Sealed Power (PN 22415048) for $30.79. They list only 4 remaining. I don't know if that is all there is left, or that is all they have in stock before they re-order.

    For matching machined surfaces that are to be sealed to each other, I prefer anaerobic sealant.

  20. #60
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: Big Single Build

    He has the OEM style gasket there, and pretty much nobody uses gaskets except people who are used to working on other motors. I found that when I have oil leaks, its because of excess blowbye that is not being handled properly. My latest change in my exhaust crankcase evacuation setup that uses the OEM PCV system while idling cured up a bunch of oil leaks. Still can't get my turbo fittings to be dry.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

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