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View Full Version : Quick Question - 2F head bolt thread


rover67
03-22-2010, 12:49 PM
Anybody know the thread pattern on these? I want to order a tap and die online today and am having no luck searching for the info.

DaveInDenver
03-22-2010, 01:17 PM
Anybody know the thread pattern on these? I want to order a tap and die online today and am having no luck searching for the info.
Not sure if it's any different than the 22R, but that one is 12mmx1.25. I have a bottoming tap that works really well for this because the head bolt holes are blind and regular taps lose a few threads to the starting section. AAA Metric south of downtown had them in stock.

treerootCO
03-22-2010, 05:28 PM
I need one too :) Let me know what you find out.

rover67
03-22-2010, 07:50 PM
Looks like it is m13 x 1.75

want me to order two taps and dies?

rover67
03-22-2010, 07:59 PM
Wow, they aren't wasy to find... I found one on Ebay in the UK. Sent him a message to see if he'd ship here.

Odd size I guess...

60wag
03-22-2010, 08:01 PM
Did you try Fastenal?

rover67
03-22-2010, 08:02 PM
Nope, will do.

Edit: Fastenal dosen't list anything in the 13mm size.

Makes me want to go remeasure.

Edit again:

I double checked and it is indeed a m13 x 1.75 thread.

Weird.

treerootCO
03-22-2010, 08:21 PM
If you can find 'em local, order me the set. We are planning on rebuilding the 40 on Wednesday unless a blizzard hits. If it does, we are thinking Friday. I have the alternator bracket for you, just need to get it to you.

rover67
03-23-2010, 03:09 PM
OK, will do. PM me your number, I'll just give you a buzz when I get back in town. I will be around thursday, friday, and this weekend