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Snapped a bolt - help me before Lars gets here!

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Old May 29, 2005 | 08:45 PM
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Default Snapped a bolt - help me before Lars gets here!

So I noticed the other day I had a pretty good leak coming from my water pump. I started to remove my old pump...and then it happened...bing! The head of the lower bolt, pass side came right off. I need to get this resolved ASAP as my 'vette will be one of the lucky ones to get "Tuned by Lars" this Saturday.
So my question is now...are the bolt holes on the water pump threaded? It looks like this is the original pump. If they aren't, I think I should be lucky enough to still remove it and have enough of the bolt showing to hopefully remove it.
I don't want to cause any further damage until I get some good advice!

Thanks,
Tony

edit:
I also have a bracket for A/C. I don't know if this makes things worse or better?

Last edited by tonyk72; May 29, 2005 at 09:00 PM.
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Old May 29, 2005 | 08:49 PM
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no the bolt holes inthe water pump are not threaded....just "bores" you can expect the bolt shaft to pretty crappy, good luck.
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Old May 29, 2005 | 08:50 PM
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You mean on the actual pump? Not on the one I took off, threads are in the block. So I presume you are going to pull off the pump to get at the bolt.

I getting tuned this Saturday too & I have a serious electrical problem jeodardizing my car's attendance (I'll be there no matter what)
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Old May 29, 2005 | 08:53 PM
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i feel your guys pain....my car is the second car in the NJ tuning session for the fall....its going to make it even if i have to push it the 90 miles to get there.....
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Old May 29, 2005 | 09:50 PM
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Originally Posted by tonyk72
So I noticed the other day I had a pretty good leak coming from my water pump. I started to remove my old pump...and then it happened...bing! The head of the lower bolt, pass side came right off. I need to get this resolved ASAP as my 'vette will be one of the lucky ones to get "Tuned by Lars" this Saturday.
So my question is now...are the bolt holes on the water pump threaded? It looks like this is the original pump. If they aren't, I think I should be lucky enough to still remove it and have enough of the bolt showing to hopefully remove it.
I don't want to cause any further damage until I get some good advice!

Thanks,
Tony

edit:
I also have a bracket for A/C. I don't know if this makes things worse or better?
Once you get the pump off, try using vise grips LOCKED on the bolt shank and first try to tighten the bolt. Then try to remove it.

Don
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Old May 29, 2005 | 11:20 PM
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I tried the vice grips, this thing ain't budging. I lubed it up with some super penetrating lube stuff & will try again in the morning.
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Old May 30, 2005 | 12:10 AM
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Originally Posted by tonyk72


I tried the vice grips, this thing ain't budging. I lubed it up with some super penetrating lube stuff & will try again in the morning.
if the other 3 bolts are removed...it should slide right over that "shank" left from the bolt. Tap the water pump with a hammer in different directions. Probably just "glued" to the block by sealer and gaskets. It is ready to come off...
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Old May 30, 2005 | 12:29 AM
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Do as JC says. If you can add some heat (propane torch) it may help. Also try using wide blade screwdriver to wedge the water pump of theblock. I know it is a little bubba but these are desperate times.

You could also try drilling a small hole along the bolt (might cut into pump a little) to try and give it breathing space which may help it to move.

I am still up working so if you have more questions IM me.

I wish you the best of luck.
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Old May 30, 2005 | 02:05 AM
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Up late working in the garage are we ?
2 AM I just got in ... I won't go into how much I did (Lots) and how much to do (lots),
but I might be driving mine in the driveway come Saturday.

Like these guys said ... get the pump loose and outta there.
Looks like it might need some heat on the pump to loosen.
WATCH the radiator .. you don't wanna compound this.
It looks like the shank of the bolt might be healthy.
If so - after sliding the pump off - I would try a small pipe wrench.
Forget vice grips - the pipe wrench grabs harder - the harder you push.

If that doesn't do it, then we could try welding a nut on the end to wrench it off.
I hope we have some cars to tune.
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Old May 30, 2005 | 09:08 AM
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Same thing happened here.

A PITA

Used an Easy Out
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Old May 30, 2005 | 09:21 AM
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Originally Posted by NHvette
Up late working in the garage are we ?
Dave,

I wish! I was doing my LAST MBA assignment. Thankfully the vette doesn't need much work done to it now. I still have to install the X-pipe, a new coolant tank and a rag top.

Anyway back to the problem.

Did you get the bolt out?

Pete
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Old May 30, 2005 | 11:00 AM
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I meant Tony ... but you were up late also.
It seems all of us in New England have -something- to get fixed up before Lars gets here.
I'd just remind everyone that I wanted to do it later in the season.

Let me know how it goes, Tony. I'm working a short day today.
So, I'm not available to help right away - but the welder loads into the truck easy enough if you need it welded. Lemme know.

- Dave
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Old May 30, 2005 | 11:53 AM
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The pump moves freely now, I can pivot it up/down about 15 degrees. The problem is it pivots on the broken bolt & the bolt moves as I pivot the pump....which leads me to believe I shouldn't have a problem removing the bolt when the pump comes off...But the pump isn't coming off!
I'm not too crazy about using heat because my fuel line runs about 3" away. For now, I'm going to run out and get a pipe wrench and try to hold the bolt still as I pivot the pump...hopefully that'll do the trick.

Thanks for all your help guys! I'll keep ya posted.

Last edited by tonyk72; May 30, 2005 at 11:53 AM. Reason: typo
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Old May 30, 2005 | 12:07 PM
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Originally Posted by tonyk72
The problem is it pivots on the broken bolt & the bolt moves as I pivot the pump....which leads me to believe I shouldn't have a problem removing the bolt when the pump comes off...But the pump isn't coming off!



The bolt shouldn't move

Hopefully the threads in the block are fine ....
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Old May 30, 2005 | 12:54 PM
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Good news. He's saying the threads are loose in the block (not seized)
and the bolt is rust-seized to the inside of the pump.

Just wrap the hoses and belts loosely with a few layers of aluminum foil,
and heat the pump. They will be fine.
BTW - you have the rubber line from the pump.
I'm trying to dig up parts to fix mine to steel during the event.
If I find something, I'll get a couple sets - should be fairly cheap.

-Dave
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Old May 30, 2005 | 03:30 PM
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Default Good thing Sears was open today

Sears carried a stripped bolt remover socket set which did the trick for me! I just hammered (many, many times) the socket onto the bolt and used a socket wrench to rock the rusty bolt loose and out!
Now I hope I can pick up a GM Performance parts aluminum water pump locally tomorrow or at least a stock GM pump while the original goes out for a rebuild (yes, I'm an originality freak...but one day I hope to replace the LT-1 w/ a ZZ383). I have a new BOSCH unit ready to mount, but think it'll go back to Pep Boys.
So I think I should be all set for Satuday! I just hope it all goes well from here.

Dave, BTW, the fuel line is steel.

Thanks again,
Tony
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Old May 30, 2005 | 03:48 PM
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Originally Posted by tonyk72
,,,,,, (yes, I'm an originality freak...but one day I hope to replace the LT-1 w/ a ZZ383).

tony...this is the DARK side calling scrap the original stuff come to the DARK SIDE our Force is strong and we have many....
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Old May 30, 2005 | 04:24 PM
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The DARK side will give you the power to keep your original parts from dying,
but it won't force you to wear seatbelts and keep yourself from dying.
(You'd have to have seen episode 3 for that to make sense)

That's great news Tony ... sorry for misreading your picture.
The steel line has same color/texture as the hoses.
The LT-1 line is one-of-a-kind and pricey if I recall ... so we will leave it be.

I like original parts - due to the quality ... replacements are typically crap.
If I can, I refurbish the old ... at least when a better upgrade is not available.

Looking forward to this weekend ... looks like the weather might cooperate.

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Old May 30, 2005 | 05:58 PM
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Default Maybe I should quit while I'm ahead?

I decided that I might as well replace my fan shroud as it was cracked & I got a new one at Carlise last year...nows a good time right? Looks like I know why my old one is cracked...ease of installation & removal! There doesn't seem to be an easy way to get the new shroud in there without pulling the rad and/or other stuff. Forget it...I'm just gonna clean up the garage and hopefully install a new GM pump tomorrow.
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Old Jun 1, 2005 | 06:29 PM
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Default How long should the bolts be?

I got new same length bolts to go with my new pump. The newer pump is a slightly thicker casting so now my bolts only go in less than 1/4 inch & some 1/8 of an inch! I checked the original pump & bolts and they showed a little more thread, but not much. So my question is how much of the bolt should go into the block?

Also, I am using the BOSCH pump...too many problems with the aluminum version...
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