Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: BIGDRY on February 09, 2016, 09:30:29 AM

Title: water pump mounting hardware - i6 4.2l
Post by: BIGDRY on February 09, 2016, 09:30:29 AM

Hello all, attacking my cj from all angles at the moment...
I need new hardware for the new water pump, everything i took off was rusted,snapped and mangled...

I've been quoted £20 for the studs! anyone know what thread the standard studs are and correct size, lengths etc? im assuming something imperial? (which is i why i dont have a clue!ha ha)

thx all

Title: Re: water pump mounting hardware - i6 4.2l
Post by: Jonny Jeep on February 09, 2016, 11:40:43 AM

It doesn't specify the threads in the 86 parts list. In the TJ parts list the threads are all .312 which is 5/16". Mounting bolts to the engine on the TJ are 5/16-18 (UNC) the studs for fitting the fan on the TJ are 5/16 18 - 5/16 24 and 1.25 inch long. That might be a good size to try. Not sure if we'd have anything that size in work or not.

Title: Re: water pump mounting hardware - i6 4.2l
Post by: BIGDRY on February 09, 2016, 02:14:28 PM

Thx Jonny, this forum is most helpful, refreshing compared to others! cheers again.

Title: Re: water pump mounting hardware - i6 4.2l
Post by: Jonny Jeep on February 09, 2016, 10:34:47 PM

Couldn't find the box with studs in today which is bloody typical. Nothing ever gets put back when people are finished. I'll try again tomorrow.

Title: Re: water pump mounting hardware - i6 4.2l
Post by: Bubba on February 10, 2016, 11:53:31 AM

are yours lost ?

i probably have them in the many bolts tubs at in my shed left over from the many cjs i had   but i have to say you should be able to find them from any good engineering hardware suppliers

Title: Re: water pump mounting hardware - i6 4.2l
Post by: Jonny Jeep on February 10, 2016, 08:48:41 PM

Found the box. Only two of them in the size I mentioned above. PM your address and I'll stick them in an envelope so you can try them for size.

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Title: Re: water pump mounting hardware - i6 4.2l
Post by: bisleywrangler on February 10, 2016, 11:13:39 PM

Not much help now I know but I found it really useful to buy a cheap imperial tap and die set. Rubbish for tapping from fresh but great for finding the thread size and cleaning out rusty/dirty threads.


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Title: Re: water pump mounting hardware - i6 4.2l
Post by: Jonny Jeep on February 13, 2016, 11:46:40 AM

Posted the studs with a couple each of 5/16 unc/unf bolts. Stuck a normal and nyloc nut on each end of both the studs too.

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Title: Re: water pump mounting hardware - i6 4.2l
Post by: BIGDRY on February 13, 2016, 11:16:19 PM

You're a gent.thx