How to fix a Mercruiser engine block crack with J-B weld. 3.0 Mercruiser engine block crack fix with J-B weld. Will it work?! follow up video link: • 3.0 Mercruiser engine ...
I have OMC Cobra 3.0 and i have the same problem. The difference is that the first owner soldered it with inox soldering. Tomorrow i’ll try with friend of me that have the same epoxy . Hope it will help.
I think you need to tighten the bolts into those holes and cut them and smoothed with the angle grinder to the block level so its make the more strength
the Alternator seems to be loose or the fixing position is worn, brazing could have been a more permanent job, good luck with it. as for me i was looking for JB weld rubber to metal fix .
Thank you. We have not yet tested it properly. In couple weeks we are planing to do so. We are planing to test everything in the water. We will share that on a video. Please follow next video. If you have any comments please share it with us. We are all learning. Thank you for your comment. Thanks again.
I’ve got the same issue on my merc 228. Did you drill all the way through the block for the holes at the end of the crack? Thanks, hope the repair is holding up for you!
I going fix my block is also Mercruiser 3.0, How is going your boat after you fixed? I hope is working You put just 1 code JB no 2? Thank you for this video!👍
I've seen them fixed with silicone. JB weld will hold. there isnt much pressure in a boats cooling sytem since it is an open system. taking and leaving the thermostat out will also help to keep less pressure in the system.
I got a block that’s cracked as well and needs exactly the same repair done but needs someone who knows exactly what they are doing to get the job done
If you have anyone you know kind handy with tools, have them watch the video. I hope will be easy experience. If you have any question through your process please don’t hesitate to send your question. Thank you for watching the video, and I hope it will be a good guid to your project and get your problem fixed.
@@pharaohssquad8078 that's what I thought. No welder is willing to welder cast iron and I don't trust these jb weld methods on oil line cracks. I'm F***ed
@@pharaohssquad8078 I'm trying to get rid of the car but wanted to see if there might be a way to fix the block it's it's cracked in the piston bores and outside block small thin cracks didn't think it was fixable
For car engines there are couple videos on RU-vid showing the difference between JB weld and welding in couple different ways. I remember watching them. Those might help you
We always trust it and never failed us. It can handle tough conditions and high temp. If it ever failed with us, we will let everybody know. But so far it’s the best
Fiberglass Jelly would work much better than JB Weld. JB weld will break down with water and heat on metal. Welding it would be the best way to fix it.
The drill bits and JB weld together about $20. I sure it was less but just going higher. Your time it depends on how long would it take to finish it, but honestly the enjoyment and the thrill of fixing yourself is priceless.
I honestly hope that's not a customers boat motor your doing that too!!!! And if so I really hope they know you fixed it that way and hopefully didn't charge them for a whole new block and etc. Because if that was my boat and you did some shady shit ass work like that and charged me alot of money I would be furious.
We only work on our vehicles. Our channel is about DIY. We offer ideas, and we test them. if you like to try them, it’s on your own risk. We know eventually have to change the engine, but once again it was an idea and we put it to the test. (So far it’s working) But thanks for your concern, and your comment.