User Tag List

+ Reply to Thread
Results 1 to 5 of 5

Thread: Xflow thermostat bolts... What size?

  1. #1
    Bodger Richb77's Avatar

    Join Date
    Jan 2018
    Location
    Outside Berlin, formerly Newmarket Suffolk
    Posts
    167
    Thanks
    22
    Thanked 5 Times in 5 Posts

    Xflow thermostat bolts... What size?

    My engine came with no thermostat cover or bolts. Can anyone tell me the size bolts used? Im assuming imperial?

    Cheers

  2. #2
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,110
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: Xflow thermostat bolts... What size?

    at a guess 5/16 unc

  3. The Following User Says Thank You to Graham For This Useful Post:


  4. #3
    Bodger Richb77's Avatar

    Join Date
    Jan 2018
    Location
    Outside Berlin, formerly Newmarket Suffolk
    Posts
    167
    Thanks
    22
    Thanked 5 Times in 5 Posts

    Re: Xflow thermostat bolts... What size?

    Can someone confirm? I have to mail order Imperial stuff (I live on mainland Europe) and they aint easy or cheap to get.

    What length? 25mm?

  5. #4
    Bodger Richb77's Avatar

    Join Date
    Jan 2018
    Location
    Outside Berlin, formerly Newmarket Suffolk
    Posts
    167
    Thanks
    22
    Thanked 5 Times in 5 Posts

    Re: Xflow thermostat bolts... What size?

    Update:

    I found this on "old skool ford" (Credit where its due)

    Crossflow
    Engine bolts (in block): 5/16 UNC.
    1300-1600 flywheel bolts: 3/8 UNF.
    Oil pressure take-off: 1/8 NPT for 681 blocks & 1/4 NPT for 691 and 711m.
    Thermostat Housing: 5/16 UNC 25mm long
    Inlet Manifold: 5/16 UNC 25mm long
    Exhaust Manifold: 5/16" 25mm long (UNF for the nuts and UNC in the head)
    Oil Pump: 5/16 UNC 25mm long
    Rear Crank Cover: 5/16 UNC 25mm long.
    Water pump x2: 1/4 UNC
    Water Pump x1 (alternator bracket one): 5/16 UNC 25mm long
    Sump bolts:
    Oil Breather Box:
    Distributor to block: all 1/2" long
    Front Timing Cover: all are 20mm apart from 1 which is 43mm long
    Crossflow water pump pulley / fan retaining bolts - 5/16 UNC for MK1s, Mk2 and most remanufactured pumps are M8

  6. #5
    Pole Position Decade Plus User
    Turbosport Administrator
    Miniliteman's Avatar

    Join Date
    Feb 2004
    Location
    the Netherlands
    Posts
    4,888
    Thanks
    38
    Thanked 611 Times in 558 Posts

    Re: Xflow thermostat bolts... What size?


+ Reply to Thread

Bookmarks

Posting Permissions

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