Water pump bolt sizes?

Thatoneguy · Sep 18, 2017

Does anybody happen to know what size bolts are needed to secure the water pump? Gonna be heading over to a friend's shop today after work to put the water pump on my truck that I'm fixing after the wreck. Problem is it needs new hardware and I don't feel like driving all the way out there, coming back and getting bolts, and going all the way back out lol. I used the search on here but couldn't find it And my phone doesn't have Google. Thanks in advance!

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Dieselcrawler · Sep 18, 2017

oh golly they are all different lengths. if nobody comes through i could get them for you once i get home (330 EST)

sjwelds · Sep 18, 2017

https://www.oilburners.net/threads/replacing-water-pump.59057/

^^straight from the tech articles. He doesn't ever give a length on the bolts, but I figure that will be a help at the very least.

@riotwarrior

Thatoneguy · Sep 18, 2017

Ya I saw that. Just need the length now. Looks like I'm just gonna have to suck it up and do lots of driving today.

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OLDBULL8 · Sep 18, 2017

If you have the pump with you, just measure each bolt hole depth and add a 1/2" for thread, be careful of the top two holes, if the bolts are too long they will hit the IP gear and cause trouble

EDIT: If you do have the pump, lay it on a piece of paper or cardboard, punch holes for the bolts, mark the length next to the punched holes.

whiteboyslo · Sep 18, 2017

OLDBULL8 said:
EDIT: If you do have the pump, lay it on a piece of paper or cardboard, punch holes for the bolts, mark the length next to the punched holes.

My method....

Lay new pump on the floor. 1 for 1, remove a bolt from the engine and "install" it in the new pump. Once the old one is out, transfer bolts to old pump, then install new pump. Simple enough.

Mike

Thatoneguy · Sep 18, 2017

Unfortunately I do not have it with me. Otherwise that's what I would do.

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Dieselcrawler · Sep 18, 2017

I got busy as hell, didn't get home till late and completely forgot till now. Long ass day when you wake up at 2 for work. Hopefully you used the method above and got it done

IDIBRONCO · Sep 18, 2017

Aside from the top two bolts, there's really only two different lengths. I don't know how long they are, but there's four long ones and the rest are shorter.

Thatoneguy · Sep 18, 2017

Got it done. Ended up having to just suck it up and do lots of driving

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riotwarrior · Sep 19, 2017

sjwelds said:
https://www.oilburners.net/threads/replacing-water-pump.59057/

^^straight from the tech articles. He doesn't ever give a length on the bolts, but I figure that will be a help at the very least.

@riotwarrior

Thatoneguy said:
Ya I saw that. Just need the length now. Looks like I'm just gonna have to suck it up and do lots of driving today.

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Read the pic of instructions on post 33 details are there ....

sjwelds · Sep 19, 2017

Thatoneguy said:
Got it done. Ended up having to just suck it up and do lots of driving

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Now, you know, you really need to give us the answer to this post, so if someone is searching in the future, he can find the answer here.

So how long did they end up being?

Thatoneguy · Sep 19, 2017

sjwelds said:
Now, you know, you really need to give us the answer to this post, so if someone is searching in the future, he can find the answer here.

So how long did they end up being?

Damn didnt even think to let yall know. I'm heading out there today and I'll let yall know! Im kinda slow...

Thatoneguy · Sep 19, 2017

riotwarrior said:
Read the pic of instructions on post 33 details are there ....

The instructions are just talking about the bolts that were supplied with the pump he bought and the old and new casting bolt length requirements.

Thatoneguy · Sep 19, 2017

Here it is Gents.....
Long water pump bolts are 5/16"-18X2-3/4"
Short water pump bolts are 5/16"-18X1-1/2"

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Water pump bolt sizes?

Thatoneguy

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Dieselcrawler

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OLDBULL8

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whiteboyslo

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Dieselcrawler

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IDIBRONCO

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riotwarrior

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