cracked block
#1
cracked block
Here is a quote from e-bay motors of a 69 442 convertible for sale.
"HERE ARE SOME PHOTOS, THE MATCHING BLOCK IS "G', HEADS ARE "C" AND THE MANIFOLD IS "J". BLOCK HAS A NICE CRACK WHICH IM TOLD CAN BE REPAIRED. "
Does anyone have any experience repairing origional cracked blocks?
Photos are here.
http://cgi.ebay.com/ebaymotors/Oldsmobile-442-1969-OLDSMOBILE-442-CONVERTABLE-HEAD-TURNER-NO-RESERVE_W0QQitemZ260344025904QQcmdZViewItemQQptZUS _Cars_Trucks?hash=item260344025904&_trksid=p4506.c 0.m245&_trkparms=65%3A3%7C39%3A1%7C240%3A1318
"HERE ARE SOME PHOTOS, THE MATCHING BLOCK IS "G', HEADS ARE "C" AND THE MANIFOLD IS "J". BLOCK HAS A NICE CRACK WHICH IM TOLD CAN BE REPAIRED. "
Does anyone have any experience repairing origional cracked blocks?
Photos are here.
http://cgi.ebay.com/ebaymotors/Oldsmobile-442-1969-OLDSMOBILE-442-CONVERTABLE-HEAD-TURNER-NO-RESERVE_W0QQitemZ260344025904QQcmdZViewItemQQptZUS _Cars_Trucks?hash=item260344025904&_trksid=p4506.c 0.m245&_trkparms=65%3A3%7C39%3A1%7C240%3A1318
#2
First you disassemble, clean and pressure check. If there is one crack there may be more. You drill holes at the ends of the crack which will prevent the crack from growing.
You can arc or gas weld with a nickle rod. Gas welding can be spendy .
You can arc or gas weld with a nickle rod. Gas welding can be spendy .
#4
Wow, that's a really ugly crack!!! I have a similar problem with my 69 442. The original 400 has a hairline crack in the water jacket behind the starter. It is much smaller than the one pictured there. Hairline cracks in non-structural areas can be repaired fairly easily. Here locally there is a welder who has been repairing cast iron farm equipment for decades. I've had him repair the cast iron base on my drill press, and there have been no problems for five years. You need to find someone with that sort of experience.
Getting back to the car in the pictures, that crack may be more trouble than it's worth. It's hard to tell from the pictures, but it appears that the ice also deformed the outer shell of the water jacket. There may be other damage as well. If the issue is just a sealing weld so the water jacket holds coolant, you may be able to have it repaired.
Getting back to the car in the pictures, that crack may be more trouble than it's worth. It's hard to tell from the pictures, but it appears that the ice also deformed the outer shell of the water jacket. There may be other damage as well. If the issue is just a sealing weld so the water jacket holds coolant, you may be able to have it repaired.
#5
I have seen it done just the way mugsz described it...
but that was a much smaller crack
I found this on the web maybe it helps
http://www.lincolnelectric.com/knowl...ronpreheat.asp
that said, even a repaired olds block has got to be better then having a buick in there LOL....
#8
maybe the block needs more work??
in thinking was everything else in the block ok? it maybe that there are more problems? I personally think the crack can be repaired, and I am no "rocket" scientist, I would get a replacement block, and keep this one off to the side crated, in case i wanted to sell it put the original heads etc etc etc on the replacement block. things happen, a crack like this could it could of happened in 1969, and if someone replaced the block with a block purchased from oldsmobile would it be less correct? I do remember something about replacement blocks having serial numbers of their own.
but I do not think anyone would fault you, I have been following the barrett jackson auctions on the speed channel and have seen quite a few restorations with correct dated parts but not numbers matching, and if it hurt the values it was hard to say, as the prices I saw were astronomical!
a 1969 w-30 went for over 100K!!!!
but I do not think anyone would fault you, I have been following the barrett jackson auctions on the speed channel and have seen quite a few restorations with correct dated parts but not numbers matching, and if it hurt the values it was hard to say, as the prices I saw were astronomical!
a 1969 w-30 went for over 100K!!!!
#10
I wondent take the risk of putting a re-paired block back in the car,u can repair it, keep it- and if you sell the car include it w/ the sell but I wouldnt put it back in car.
Diff keep it, you wouldnt be able to even use a cracked block as a trade in core...
You still can have matching numbers car if you get the same year block just not correct " original" matching number car.
I hope this helps and good luck..
Diff keep it, you wouldnt be able to even use a cracked block as a trade in core...
You still can have matching numbers car if you get the same year block just not correct " original" matching number car.
I hope this helps and good luck..
#11
No, you cannot. The numbers that "match" are the VIN derivative. Simply having a "correct" casting number and even a close date code is NOT "numbers matching". The fact that the VIN derivative stamped on the block and trans actually MATCH the VIN of the car is why it is called "numbers matching"
#18
No, you cannot. The numbers that "match" are the VIN derivative. Simply having a "correct" casting number and even a close date code is NOT "numbers matching". The fact that the VIN derivative stamped on the block and trans actually MATCH the VIN of the car is why it is called "numbers matching"
#19
MN71W30 and I were commenting on the "rebuilt but not original 455" that's in the car right now. We don't think it's an Oldsmobile engine... and the seller is just identifying it as a rebuilt 455. Shouldn't he point out that the car has a Buick or Pontiac engine in it right now??? If that's not an important detail to the seller, what else is "out of place" that's not being mentioned? I can see the 4 spoke sport wheel, and the rear seat looks nice but the stitching is different than the bucket seats. Yeah, nice car but I'd want to crawl over it real good to see what is and what is not correct for a 1969 442.
Last edited by 2blu442; January 10th, 2009 at 06:07 AM.
#20
you got that right
MN71W30 and I were commenting on the "rebuilt but not original 455" that's in the car right now. We don't think it's an Oldsmobile engine... and the seller is just identifying it as a rebuilt 455. Shouldn't he point out that the car has a Buick or Pontiac engine in it right now??? If that's not an important detail to the seller, what else is "out of place" that's not being mentioned? I can see the 4 spoke sport wheel, and the rear seat looks nice but the stitching is different than the bucket seats. Yeah, nice car but I'd want to crawl over it real good to see what is and what is not correct for a 1969 442.
I looked at a 69 442 conv locally listed last year on ebay and I could not believe what a pile it was.
beware!!
#21
I thought he mentioned in the add that it's a Buick.[ actually someone asked and he said so in the Q&A at the bottom]
Other than that
70 hood [but worth a small fortune]
70 4 spoke [not 69 steering wheel]
funcky back seats
wrong color wheels for 69
Chebbie trunk stipes
Other than that
70 hood [but worth a small fortune]
70 4 spoke [not 69 steering wheel]
funcky back seats
wrong color wheels for 69
Chebbie trunk stipes
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