From the Reference Section:
- Carter Dual 4-Barrel Carburetor Idle Adjustment
- Carter Dual 4-Barrel Carburetor Adjustment
- Carter Dual 4-barrel Carburetors, Linkage Sticking
- Buick Cam Specifications for 401 and 425 nailheads
- Buick Cams from Kenne Bell, 401, 425
    - Nailhead Engine Specifications
- Head Flow Chart
- Nailhead Oil Pump
- Nailhead cam specs and cam selection
- Nailhead Parts Interchange
Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 22

Thread: Water leak at/near pump bolt hole? 1956 322 Nailhead

  1. #11
    Join Date
    Oct 2018
    Location
    Pennsylvan
    Posts
    10
    Rep Power
    0
    Thanks for all your ongoing help with this! Old pump is off, luckily no bolts broke. When comparing old pump to new, there is a small metal dowel in one hole of old pump (I assume for ease of lining up when bolting) but it is not on new pump. See photos. Any issue, leak-wise, not having it on new pump?
    Attached Images Attached Images

  2. #12
    Join Date
    Sep 1999
    Location
    Dbl Oak,TX
    Posts
    745
    Rep Power
    25
    It probably would work. If it were mine, I would put a dowel in the pump body like the original just to be sure. The gasket at that hole would have an open cavity into the timing chain cover and an open hole through the pump body without the dowel in place. Cooling system develops as much as 7-15 psi at 200+ F when running. So a weak spot in the gasket from the missing dowel might leak. This is a design detail the pump manufacturer missed.
    What has been, can be again. (Bob Wills, 1942)

  3. #13
    Join Date
    Feb 2009
    Posts
    149
    Rep Power
    0
    The dowel is supposed to be in the timing cover...there are 2. Remove the dowel from the old pump and tap into the timing cover. Then install the new pump.

  4. #14
    Join Date
    Oct 2018
    Location
    Pennsylvan
    Posts
    10
    Rep Power
    0
    Thanks! Just noticed a difference between old and new pump. The new one has an outlet on side opposite radiator hose. See photo. Came with what looks like a valve that goes there. Is this a correct setup? Valve is correct there?
    Attached Images Attached Images

  5. #15
    Just go to your local hardware store, take the new pump with you, & get a 1/2" NPT (I believe that's the size) plug in the plumbing dept. If your unsure ask for help. Put some thread sealer on the plug to help seal the threads or the tape made for this kind of stuff. Again, ask for help if unsure. MANY bolts that hold the pump on go into blind holes. To check which ones are open to coolant use a thin screwdriver & poke at the holes. Ones that go through use some sealer like Permatex or equivalent..

    Tom T.
    Tom Telesco
    Classic and Muscle Automotive
    12 Cook St.
    Norwalk, CT 06853-1601
    Day Phone 203-324-6045 ET
    NailHead Mini-Starters '53-'66
    Adjustable Roller Tip Rocker Arms - All NailHeads
    Custom forged pistons
    Front & rear neoprene seals
    Many other "Nail" parts
    "If I can't get it, you don't need it!"

  6. #16
    Join Date
    Oct 2018
    Location
    Pennsylvan
    Posts
    10
    Rep Power
    0
    Thanks Tom, I’m good with bolts but now I’m talking specifically about the large outlet in last photo (red arrow pointing to it) - it’s not on the old pump but is on the new one, and comes with a metal plug to block it. What’s that outlet for?

  7. #17
    Join Date
    Feb 2009
    Posts
    149
    Rep Power
    0
    Just use the supplied plug and plug it. You did not need it before so not now. Pump was probably made using some universal parts in the casting. (never saw one like that --- where did you get it?)

  8. #18
    Join Date
    Oct 2018
    Location
    Pennsylvan
    Posts
    10
    Rep Power
    0
    Old buick parts dot com. Company is Cars llc, in NJ.

  9. #19
    Join Date
    Oct 2018
    Location
    Pennsylvan
    Posts
    10
    Rep Power
    0
    Odd. It also came with an alternative connector (2 open threaded ends) for that hole.

  10. #20
    Join Date
    Sep 1999
    Location
    Dbl Oak,TX
    Posts
    745
    Rep Power
    25
    Buick redesigned the 1957 water pump mid-year by adding an inlet port and hose nipple on the pump neck. The heater core return line hose was then moved from the radiator tank to this new fitting. This was done to improve heater warmup and reroute the hose away from front suspension parts.

    Don't know what this feature is doing on a '56 pump. Have not been able to find a reference showing this port on an original '56 pump.
    Last edited by TODD; 10-23-2018 at 07:20 AM. Reason: Spelling correction
    What has been, can be again. (Bob Wills, 1942)

Similar Threads

  1. 69 Riv. timing cover & water pump bolt set, 430 eng.
    By James R in forum Big Block: 400, 430, 455
    Replies: 3
    Last Post: 02-07-2017, 07:03 PM
  2. 1956 322 water pump
    By LONG in forum Nailhead: 264, 322, 364, 401, 425
    Replies: 2
    Last Post: 06-29-2015, 07:23 AM
  3. Nailhead water pump
    By jay in forum Nailhead: 264, 322, 364, 401, 425
    Replies: 5
    Last Post: 08-05-2009, 07:57 AM
  4. water pump leak.
    By LowBlowJoe in forum Straight Eights!
    Replies: 4
    Last Post: 01-08-2008, 12:07 PM
  5. Water Pump Leak... please help!
    By tylerdurben in forum Straight Eights!
    Replies: 3
    Last Post: 06-24-2007, 01:36 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
TeamBuick.com Privacy Policy