Re: [DML] Water pump and internal water pipe removal
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Re: [DML] Water pump and internal water pipe removal



Andy,

Thanks for the advice! I did exactly as you said with the Y-pipe 
bolts and they came out no problem, none broken. Do you (or anybody 
else) know if this is safe to do for the water pump bolts. I haven't 
tried it yet on them because I wasn't sure about whether or not 
putting the flame to those bolts would damage the block around it. I 
have tried loosening them with a 1/4" drive ratchet to avoid 
snapping them, but they haven't budged. I'm quite worried about 
breaking one of them. Anybody have any more advice on how to 
approach the water pump bolts? Thanks all!

Dave
#5968


> 
> >>>>
> Dave,
>  
> I did this a few years ago.  Here is what I did:
>  
> 1. use penetrating oil for a couple of days prior to removal.
> 2. Use a propane torch to heat the bolt up.  Just point the torch  
flame at 
> the bolt and the pipe it goes into.  Do this for maybe a minute 
or  so.  avoid 
> heating the block or heads because this kind of heat could  damage 
the 
> aluminum. keep a fire extinguisher handy and wear safety  glasses.
> 3. immediately after heating, use a ball-peen hammer and tap the 
head of  the 
> bolt a few times to jar it loose from any rust or whatever.
> 4. being sure to use the appropriate size 6 pt socket and high 
quality  
> ratchet and extensions, make sure you have plenty of room to 
maneuver (set this  up 
> before heating or tapping). Joe LoRe advised me to apply maximum 
power  right 
> away to the ratchet, as this minimizes the likelyhood of slowly 
twisting  the 
> head off if you go slow.  He reasoned that the sudden torque 
would  break the 
> bolt free and come out cleanly.  Not sure if this is best advice  
but it 
> worked perfectly for me and I got the Y-pipe bolts out w/o any 
trouble at  all.  
> Make sure to replace all the O-rings and washers in there.   Don't 
cheap out 
> because you don't want to do this again!!
>  
> Good luck!
> Andy
>  
> Fargo, ND  
> 1982 DeLorean DMC12 VIN 11596
> 
> 
> 
> [Non-text portions of this message have been removed]
>








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