Looking at a 39 pontiac and it threw a rod through the block... can i weld it or put some JB on it or anything?

 

I have never heard of a way to repair a block with that kind of damage. I have seen little screw in plugs used on navistar t444e blocks that had cracked though. That is about the extent that I know of.

 

I believe you need to look for another block if the rod actually went through the block. If it is just cracked there is a chance it can be welded by a shop that know how to weld cast. Try looking for another block is the best bet

 

hi,
thanks guys,
I don't know, i assume it threw a rod since he said it had a hole... but i'm not sure... i was thinking i could cut a chunk of cast iron out of a lawnmower block and cast weld it over the top?

 

If there is a hole clean through the block, it's shot. You will need to replace it.

 

I'm going to be the dissenting opinion here. Depending on exactly where the damage is, the block can probably be repaired. It will not be cheap. Again, depending on the damage, the welding will likely distort the block and require it to be completely remachined. I suggest you locate a specialist in these sorts of repairs. Finding a replacement block will likely be less expensive.

 

You don't have to bother, just take a wad of chewing gum and stick it in the hole, that should fix it.

 

I had a friend who swore he repaired blocks with "Marine Tex" but he was know for his BS
Try it, I'd be interested in if it's T/F?

 

So what one works best? Should i use hubba bubba or trident?

haha lol... well i'll need to find something do do since there is no way i can afford to buy a new block... i was thinking i might be able to get a stovebolt out of the old 54 but i'd be willing to be that it would be a total pain in the *** to get everything to seat properly... Hopefully by the end of the day i'll have some idea of what the hole looks like, i havent actually seen the car yet but for a price tage of 500 bucks with a good frame and body i won't be passing it up if i think i can fix it. I'm sur i can make something out of it.... I don't know if it's a 6 or an 8 yet but i'll find out soon enough.

Thanks
Robert

 

Oh, and what is marine tex? I've never herd of it before?

 

Once again, I have never tried it. http://www.marinetex.com/

 

I think citcapp who said a crack could be repaired may be right, I have seen a block stick welded once but it was a small crack and needed a special rod

I did find this hope it helps

http://www.aa1car.com/library/ar497c.htm

if you use gum make sure the block is totally degreased as oil is a killer when using gum for repairs... I strongly recommend bazooka!!! you'll need to read the comic to get a smile when the fix doesn't work

 

I cant believe you guys forgot about duct tape!!! What is this world coming to???

 

I have a 1946 Oldsmobile straight six which is almost complete (minus maybe a bracket I lost and a coil). Wrong make but same era and would probably do you. If you want it come and get it. don't know if it fits your transmission or not but it is attached to the Oldsmobile automatic transmission that it came with. Take it too.

 

Only american made duct tape...

with the influx of imported products the speed rating of duct tape has been significantly diminished. what use to be 200 MPH tape has sadly been reduced to 37 mph, albeit in a 25 mph zone. This is totally unsatisfactory. The diminished rating for automotive uses is minor considering the diminished qualities effects on everyday tasks such as babysitting, the whole pesky mother in law thing and not to mention incontinence!!

Remember Gents Buy American and Bring back the speed rating of Duct tape!!








all kidding aside My wife is from ireland, when her mother comes to visit they laugh incessantly about the time they fixed their morris minor fan belt with a pair of pantyhose LOL...

 

Actually, I said that. You are correct that a special nickel rod is required. I live in a rural area of Northern VA (if you can imagine a rural area within 50 miles of Washington DC!) and there is crusty local welder who specializes in repairing farm equipment. He's very good at welding cast iron and is very reasonably priced. I'd suggest trying to find someone like that if you can.

 

My 2 Cents worth.....A rod thru the block, if indeed thats what the problem is would be devastating. A block has a water jacket in some areas and that means double repair inner and outer not to mention missing pieces if damage is extensive in a water jacket area. I have seen cast iron brased with a brass and nickel rod. I have had a manifold repaired by gas fusion welding where powdered iron is blown into the torch flame while gas welding. This is expensive and a search would be needed for someone who would do this in your area. My initial thoughts as already said in other posts would be to look for another block. I would guess that they are out there.

 

not mine just trying to help


http://austin.craigslist.org/pts/1032311925.html

1939 Pontiac 6 cyl engine with transmission complete. It still has the carb. on it and everything else. This motor is very old and rare and has said to have ran years ago. I also have lots of other older to newer parts, motors, cars, ect. Call and make me an offer.
512-760-5665
512-446-0699
Rockdale, TX

 

http://www.abouttimespares.com.au/sh...ist.asp?cat=92

 

Ultimately, I think it could be repaired but it would be very expensive. You will also have to find a replacement rod and piston, and the crank might be damaged as well.