I have been losing a small amount of coolant for the last few months. I never could find where it was going. Well yesterday when the temp jumped up to 230 i finally found where it was going. Seems i have a hairline crack in the side of the block( see photo) heres my questions first how did it get there? can i fix it with alumaseal or barrs leak and JB weld it on the outside? or should I pull it out and have it welded and is welding it possible? and does anyone have a spare 1.6 8v block they want to sell.
Last customer I had with a crack bought some Magnum Steel at the local parts store and fixed it. He is still driving it today with no problems. If you can TIG I would recommend doing that over the Magnum Steel.
As stated , Roughly grind a V in the crack. Rough grind and put some good old JB weld in there----It will work. I did it to my boat and guaranteed your sammy doesn't see as much abuse as the boat motor.
Fryer, I've got a crack in my block too. It was a leaker but some stop leak of some kind (don't remember) sealed it up after blocking the radiator. I'm still driving it every day, or my kid and keeping my fingers crossed while looking for a right-priced long block. Its been this way since I got the rig in October 01. I did try to JB Weld it but because of the location I was unable to get it cleaned and roughed up enough to affect any improvement.
Not leaking now and not looking any worse so I keep driving!