Results 1 to 13 of 13

Thread: Thermostat housing bolts

  1. #1
    boostaholic
    Join Date
    Dec 2005
    Location
    Ewing, NJ
    Posts
    1,119

    Thermostat housing bolts

    Greetings! Been quite awhile since I've posted here, but I'm back!

    My stock 86 Daytona 2.2 Turbo 1 has a casted thermostat housing. I can't remember if I installed it or thats how I got the car. But I know the other turbo dodges Ive had and have use a stamped steel thermostat housing. Well, the one bolt which the dipstick tube attaches to keeps loosening up, and I believe these bolts are too short. Where can I get the proper metric bolts? Stainless steel? what grade? Any advice would be great!
    Thanks,
    Lee

  2. #2
    Supporting Member Turbo Mopar Contributor
    Join Date
    Feb 2015
    Location
    toronto
    Posts
    631

    Re: Thermostat housing bolts

    Quote Originally Posted by Lee'sdaytona View Post
    Greetings! Been quite awhile since I've posted here, but I'm back!

    My stock 86 Daytona 2.2 Turbo 1 has a casted thermostat housing. I can't remember if I installed it or thats how I got the car. But I know the other turbo dodges Ive had and have use a stamped steel thermostat housing. Well, the one bolt which the dipstick tube attaches to keeps loosening up, and I believe these bolts are too short. Where can I get the proper metric bolts? Stainless steel? what grade? Any advice would be great!
    Thanks,
    Lee
    What about using a drop of blue thread locker??
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    Project '87 CSX #432
    Donor car '88 Daytona Shelby Z, TII with S60 Turbo/smec, 3 bar.

  3. #3
    boostaholic
    Join Date
    Dec 2005
    Location
    Ewing, NJ
    Posts
    1,119

    Re: Thermostat housing bolts

    The problem is the casted housing is about 3/8" thick when the other stamped steel ones are maybe 1/16" thick. I think I have the wrong bolts. They only thread in a couple of threads, and I'm pretty sure the holes are not stripped.

  4. #4
    Authorized Vendor Turbo Mopar Vendor
    Join Date
    Feb 2007
    Location
    Tempe,AZ
    Posts
    1,273

    Re: Thermostat housing bolts

    8 SCREW and WASHER, Cylinder Water Outlet Connector (not serviced)
    9 06500384 1 STUD, Cylinder Water Outlet Connector
    10 06100233 1 WASHER, Water Outlet Connector Stud
    11 05214514 1 CONNECTOR, Cylinder Water Outlet
    12 04179895 1 GASKET, Cylinder Water Outlet Connector
    13 04105768 1 THERMOSTAT
    14 05203339 1 NIPPLE, Thermostat Water By-Pass

    8 and 9 are the 2 bolts or studs for the thermostat housing in 1986

    no sizes listed however

    6500384 is the stud and fits 1980-1992 have this NOS

  5. #5
    Supporting Member II Turbo Mopar Contributor iTurbo's Avatar
    Join Date
    Dec 2005
    Location
    Gillette, Wyoming
    Posts
    5,129

    Re: Thermostat housing bolts

    I've never seen the cast thermostat housing, but on all my 8v cars with the stamped steel thermostat housing it uses a double ended 8mm x 1.25 stud with a nut holding down the dipstick tube bracket. I can see how you'd need a longer stud with a cast housing though.
    87 Shelby Lancer #127
    91 Dodge Spirit R/T
    08 Dodge Caliber SRT-4
    86 Dodge Omni GLH Turbo

  6. #6
    Hybrid booster
    Join Date
    Oct 2015
    Location
    Jacksonville
    Posts
    308

    Re: Thermostat housing bolts

    #1 take stud/bolt to Lowes.. use thread checking tool.
    purchase 2 bolts that are longer.

    #2 go through junky parts bin and locate two that thread in that are longer.

    #3 go to pepboys or napa with bolts.
    say to person at counter " I need two bolts that are longer"

    #4 buy thread checking tool so you have it from now on.
    measure threads. measure length. get online and order 2 longer bolts.

    #5 locate nearest fastenal.
    walk in . ask them?.

    #6 a couple of our vendors offer billet aluminum pretty sexy versions they could hook you up with.
    comes with longer bolts.




    wouldnt need stainless steel.
    wouldnt need a high grade they are not heavy torqued bolts.

  7. #7
    Supporting Member Turbo Mopar Contributor supercrackerbox's Avatar
    Join Date
    Dec 2005
    Location
    Firth, Nebraska
    Posts
    4,822

    Re: Thermostat housing bolts

    Quote Originally Posted by iTurbo View Post
    I've never seen the cast thermostat housing, but on all my 8v cars with the stamped steel thermostat housing it uses a double ended 8mm x 1.25 stud with a nut holding down the dipstick tube bracket. I can see how you'd need a longer stud with a cast housing though.
    I've got a couple cast ones. They were manufactured by Murray and sold through O'Reilly Auto Parts many years ago, but I don't know if they're still available.

  8. #8
    boostaholic
    Join Date
    Dec 2005
    Location
    Ewing, NJ
    Posts
    1,119

    Re: Thermostat housing bolts

    Quote Originally Posted by masterjr33 View Post
    #1 take stud/bolt to Lowes.. use thread checking tool.
    purchase 2 bolts that are longer.

    #2 go through junky parts bin and locate two that thread in that are longer.

    #3 go to pepboys or napa with bolts.
    say to person at counter " I need two bolts that are longer"

    #4 buy thread checking tool so you have it from now on.
    measure threads. measure length. get online and order 2 longer bolts.

    #5 locate nearest fastenal.
    walk in . ask them?.

    #6 a couple of our vendors offer billet aluminum pretty sexy versions they could hook you up with.
    comes with longer bolts.




    wouldnt need stainless steel.
    wouldnt need a high grade they are not heavy torqued bolts.
    Maybe my initial post made me sound like a complete moron. I'm a high school shop teacher and know my way around hardware. I do own a thread pitch gauge, and even know how to use it. I guess my question should have been, does anyone know what grade bolt is necessary, and is this a regular steel bolt, or stainless steel?

    I once owned one of those fancy billet aluminum housings on my first daytona. After I did the first thermostat on it, I had to replace the O-ring because it wouldn't re-seal. I trashed it and went back to the stock stamped steel housing.
    Maybe I'll just get a stock stamped housing and be done with it.
    Thanks for the input.
    -Lee

  9. #9
    Supporting Member Turbo Mopar Contributor
    Join Date
    Feb 2015
    Location
    toronto
    Posts
    631

    Re: Thermostat housing bolts

    Mine are not a normal bolt, Looks more like a nut part way down a threaded rod. A second nut is used to secure the oil dip tube.
    http://www.glmwpg.com/ServiceManuals/
    http://www.glmwpg.com/ServiceManuals/86p.PDF
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    Project '87 CSX #432
    Donor car '88 Daytona Shelby Z, TII with S60 Turbo/smec, 3 bar.

  10. #10
    Supporting Member II Turbo Mopar Contributor iTurbo's Avatar
    Join Date
    Dec 2005
    Location
    Gillette, Wyoming
    Posts
    5,129

    Re: Thermostat housing bolts

    Quote Originally Posted by Lee'sdaytona View Post
    Maybe my initial post made me sound like a complete moron. I'm a high school shop teacher and know my way around hardware. I do own a thread pitch gauge, and even know how to use it. I guess my question should have been, does anyone know what grade bolt is necessary, and is this a regular steel bolt, or stainless steel?

    I once owned one of those fancy billet aluminum housings on my first daytona. After I did the first thermostat on it, I had to replace the O-ring because it wouldn't re-seal. I trashed it and went back to the stock stamped steel housing.
    Maybe I'll just get a stock stamped housing and be done with it.
    Thanks for the input.
    -Lee
    You didn't sound like a moron at all. You won't need a high grade bolt because the torque spec is quite low on this particular fastener. It is 8mm x 1.25. The original bolt (stud?) is a double ended with a 13mm hex near about the middle. Plus another 13mm nut to tighten down that dipstick tube bracket.

    Personally, I would ditch the cast aluminum thermostat housing and go back to the the stamped steel OEM unit so that the OEM hardware will work as intended.
    87 Shelby Lancer #127
    91 Dodge Spirit R/T
    08 Dodge Caliber SRT-4
    86 Dodge Omni GLH Turbo

  11. #11
    Hybrid booster
    Join Date
    Oct 2015
    Location
    Jacksonville
    Posts
    308

    Re: Thermostat housing bolts

    oh i wasn't insinuating anything about you. we all get stuck on things some times and over think them. or forget the easiest route to take.

    I just wanted to offer you some ideas you may have been forgetting. i mean we dont all have a Fastenal near us or a big ole turbo dodge scrap parts bins.
    i would try and find some zinc coated ones and use anti seize on them for going in aluminum.

    Lowes and poop boys normally have a thread checking tool and they can sort it out really quick.

  12. #12
    boostaholic
    Join Date
    Dec 2005
    Location
    Ewing, NJ
    Posts
    1,119

    Re: Thermostat housing bolts

    Yes that was the other reason I asked about the correct bolts because that threaded stud with the hex nut in the middle isn't a standard hardware store item. I see no real benefit to the casted housing at this point, so I'll just switch back to an OEM one. I think I should have one attached to an extra cylinder head I've got stashed over at my parent's house

    Thanks for the responses all!!!

  13. #13
    Supporting Member Turbo Mopar Contributor supercrackerbox's Avatar
    Join Date
    Dec 2005
    Location
    Firth, Nebraska
    Posts
    4,822

    Re: Thermostat housing bolts

    When I installed my Charger, I just installed some studs and used some of the factory-style (with the spinning washer) on the housing, and then stacked another pair of nuts on there to hold the dipstick tube and ignition coil bracket. The extra height of the first pair of nuts was necessary for the coil bracket to clear the thicker cast housing, as opposed to the low profile of the stock bolts. I guess I never even considered the bolt depth into the water box, because I never got that far with the stock bolts.

Similar Threads

  1. Engine billet thermostat housing
    By stewdaddy23 in forum Parts Wanted
    Replies: 5
    Last Post: 07-12-2015, 10:42 PM
  2. Masi 16v thermostat housing
    By iTurbo in forum 16v Factory Engines
    Replies: 36
    Last Post: 01-19-2014, 11:43 PM
  3. Engine WTB NOS thermostat housing
    By supercrackerbox in forum Parts Wanted
    Replies: 7
    Last Post: 01-15-2013, 12:20 AM
  4. Engine TI/II/IV Turbosunleashed thermostat housing
    By J&H Ryan in forum Parts For Sale
    Replies: 2
    Last Post: 09-27-2011, 09:35 AM
  5. Thermostat housing
    By shelbyES in forum Engine - Block, Piston, Heads, Intakes
    Replies: 9
    Last Post: 03-09-2009, 02:29 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •