LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Elec WP swap, PROBLEM...

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Old 01-02-2016, 08:05 PM
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Default Elec WP swap, PROBLEM...

So its only like 32* and dark out but thats besides the point I figured I would get a start on pulling junk out to do waterpump and opti swap. Anyway waterpump is out and everysingle bolt but one has the head snapped off in the front cover..... Can I take this to a machine shop and have them tapped out or can I tap them out, or am I beat and I need to go find a new housing????...
Old 01-02-2016, 08:24 PM
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Since its already screwed up I would take a shot at fixing it yourself.. If that fails then I would find a new or used housing..
Old 01-02-2016, 08:44 PM
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New housing is close to 100$ lol. HECK NO ON THAT.. Anyone know what size bolt I can safely go to if I tap these out?
Old 01-02-2016, 10:11 PM
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$100 for a water pump core? where?
Where are you located?
Old 01-02-2016, 10:15 PM
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Phila Pa... Oh I thought he was telling me go get a new waterpump housing like as in a NEW housing lol...... So I'm guessing tapping these out is a no go then?
Old 01-02-2016, 11:36 PM
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do you mean a new timing cover? the holes are not threaded on the cover. if the bolt heads are snapped off just pry the cover off the block. make sure you have dropped the oil pan so the bottom/inside lip of the timing cover will clear the pan.
Old 01-03-2016, 08:34 AM
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No.. The 6 bolts that hold the front cover of the waterpump guts... I am trying to replace the stock WP for an electric one......
Old 01-03-2016, 08:57 AM
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Just so I know we are on the same page you are talking about the bolts circled in blue below.
You posted while I was taking the pic. I would be willing to sell the pictured housing it is powder coated.
Old 01-03-2016, 09:04 AM
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Bingo!
Old 01-03-2016, 09:07 AM
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I can't take the down time as of right now it is my DD... But what are you asking just in case I have to take this route
Old 01-03-2016, 12:53 PM
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OP

you can drill/tap your old housing. Would be faster/easier if you have a drill press so the holes are straight. Get any SAE or Metric tap that is slightly larger than what is there
and buy the appropriate size replacement bolts

or go harvest a WP from the junkyard and hope you have better luck removing the plate bolts on that

or buy what the one post has

or go buy a fing WP at parts store and bite the $ bullet on either just putting the mechanical back in or use the "new" WP as the donor hosing for the EWP
Old 01-03-2016, 01:09 PM
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Get this. Just remember to drill deeper than you think it needs for the extractor to sit in the hole. Be patient with it so you don't break the extractor on the hole. A #1 after a #40 drill bit should do the trick, if not, step up to a #2 with a #30 drill bit.
Old 01-03-2016, 02:54 PM
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Originally Posted by hrcslam
Get this. Just remember to drill deeper than you think it needs for the extractor to sit in the hole. Be patient with it so you don't break the extractor on the hole. A #1 after a #40 drill bit should do the trick, if not, step up to a #2 with a #30 drill bit.


BOOM!!!! Exactly what I wanted to know!!! TY SO MUCH!
Old 01-03-2016, 03:07 PM
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Does the freezeplug get pressed dry or with silicon also.
Old 01-03-2016, 04:05 PM
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If there's enough of the shank sticking out, you can try heavily soaking the bolts in PB Blaster and wrenching them out with vise grips. If you're pressed for time, a machine shop should be able to get them out, possibly without needing larger bolts. I had a shop that was able to extract 3 snapped bolts in a cylinder head without needing to drill and tap them.
Old 01-03-2016, 07:37 PM
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Originally Posted by Spartan7
If there's enough of the shank sticking out, you can try heavily soaking the bolts in PB Blaster and wrenching them out with vise grips. If you're pressed for time, a machine shop should be able to get them out, possibly without needing larger bolts. I had a shop that was able to extract 3 snapped bolts in a cylinder head without needing to drill and tap them.
If there is enough shank sticking out some PB Blaster might work, although it works a lot better if you let it soak overnight.
Or if there is enough shank sticking out you could weld a nut on what's left and turn it out after an all night soak in PB.
Or you could opt to saw them off as this may give you a better surface for a ***** punch to center. Drill them out at the same size as the original bolt. Then use a SS Heli-Coil and use some original sized bolts.

4dr
Old 01-04-2016, 04:38 AM
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Originally Posted by 4dr
Or you could opt to saw them off as this may give you a better surface for a ***** punch to center. Drill them out at the same size as the original bolt. Then use a SS Heli-Coil and use some original sized bolts.

4dr
exactly what I did!



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