mf 35 cracked block

[william127]

My old mf 35 has cracked its engine block, it started to overheat yesterday and when i looked it over it was leeking from a 2 inch crack in the block.

What are my options for repairing it, can it be welded, is it worth trying a pour in sealent (k seal type stuff) or do i need a new block?

Thanks, william..

[openspaceman]

My old mf 35 has cracked its engine block, it started to overheat yesterday and when i looked it over it was leeking from a 2 inch crack in the block.

What are my options for repairing it, can it be welded, is it worth trying a pour in sealent (k seal type stuff) or do i need a new block?

Thanks, william..

 

In 1972 I repaired one that had broken a scab out by one of the injector mount pillars with araldite. It was frost damage with no antifreeze. I ground the pillar down so the device that held the injector in only bore on one side, it went to Pakistan in about 1976 at auction when the farmer went out of business. This was a 4 cylinder model.

 

Subsequently I've mended cast with cracks by metal stitching but lost contact with the bloke that did it, last time in the 90s he charged £10 per inch. I've used cast iron rods too but if you don't heat up the area by the weld with propane torch and let it all cool slowly you get a crack develop alongside the weld.

[agrimog]

K-seal might repair it, do a google search for companies doing block stitching, this used to be a common repair technique

[aspenarb]

V out the crack with a dremel and get someone out with a portable tig to tig braze the crack, he/she ( pc ) wont be there ten minutes and the job will be 100%.

 

Bob

[woody paul]

He used a 4 cylinder 35 on a estate near me the block was weld from top to bottom on one side and the head on the opposite side ran a 6ft rink topper no problem.

[Peasgood]

My T20 cracked it's block, about 2" crack and leaking water. K-seal cured it.

In fact it wasn't K-seal as I couldn't get any of that, I used the dearest one Halfords sell.

 

Mine is a petrol/tvo engine and gets a lot hotter than a diesel.

[WeFixIt]

I know a bloke!! Who machines the block surface drills and tap it and bolts on a plate coated with good quality sealant job done for good!

 

 

Is it a chipper, is it a mower or another broken stump grinder who cares we'll fix it!

[Alycidon]

In my days in the heavy goods vehicle industry I was a distributor for K Seal, its good stuff and does what it says on the can. I would certainly try that route first.

 

A

[Macpherson]

you can do a weld repair as has been said, Tig prob the easiest but i have also had a good success rate with oxy-acetaline and silver solder on cast iron which may be another option, it`s not scrap,the other methods mentioned are also fine, I think I would try the K seal or similar first, you might be lucky, cheers

[Agi-Smash]

Do not use k seal or any other sealer you put in the coolant.

Seen it loads of times on ag and plant. Not just a case of if but when it blocks the rad and water pump and water galleries and head gasket and hoses and heater matrix it will just f*** everything up. Stitch or weld is best way. Having said that........... Is it 3 or 4 cylinder?