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#1 |
Registered User
Join Date: Jun 2018
Location: Los Angeles CA
Posts: 7
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Re: 250 6 engines and parts
Hi,
I have a 67 El Camino with a 250 that I'm restoring. The bolt is broken in the front of the crankshaft. I know it wouldn't be the biggest sale you ever made, but do you have one of those bolts - or do you know the thread size and thread pitch? I'm trying to get the broken bolt out and running out of ideas, but if I can figure out the exact thread size and pitch maybe I can at least clean out some of the threads near the top of the hole with a thread chaser, and that would get me to the next step. (If I can get a bolt started and stable enough I'm thinking maybe a machine shop could drill down the center of the good bolt so I can use it as a drill guide. That way I can get a good, centered pilot hole drilled and maybe then have better luck using an extractor or even a reverse direction drill bit. I'm really hoping I don't have to tear it apart to get this done. Thanks a lot for any advice or help you can give me. Scott |
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#2 |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,284
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Re: 250 6 engines and parts
250's dont have a crank bolt. The damper presses on.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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#3 |
Registered User
Join Date: Jul 2009
Location: Jonesboro, AR
Posts: 410
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Re: 250 6 engines and parts
I don't know if this even exists but I'm looking for a three groove water pump pulley that matches the groove spacing on my 292 balancer. The gap between the front and middle grooves is a little bigger than the gap between the middle and back grooves. Thanks.
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#4 |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,284
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Re: 250 6 engines and parts
Never seen a 3-groove water pump pulley. A 250 pulley is different than a 292 pulley though.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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#5 |
Registered User
![]() Join Date: May 2016
Location: Summit, MS.
Posts: 188
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Re: 250 6 engines and parts
I am in need of a IL 6 Cylinder 230 or 250?
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