rebuild a cracked block? warning a lot of questions!

[prebanbilly]

im thinking of rebuilding my cubs motor and i think its got a cracked block.
it has a oil leak at the front bottom under the governor side and drips on my mower deck. is that a gasket problem or is my block done? i did have some oil in my water, some times it blows blue smoke when its hot.
but i think my mags rotor is worn out cause it feels loose when i had to put in new points.i think timing can cause some smoke what do you guys think?

[George Willer]

If your engine has this problem don't waste money on it, especially if it may need a rebuild. Replace the engine.

[Tulip]

What George said.

[Hengy]

Investigate for the crack for sure. My governor/Mag drive seal was leaking like a sieve when I tore my engine down, and it dripped badly. When I tore the engine down, there was NO crack there on the block, so I guess I got lucky!

I agree with Mr. Willer about getting a new engine if there is indeed a crack in that location...

Mike in La Crosse, WI

[BigBill]

I'd look it over first and if its an easy spot to weld I'd weld it. It has to be a solid clean weld with no holes.

[George Willer]

I'd look it over first and if its an easy spot to weld I'd weld it. It has to be a solid clean weld with no holes.

Most cubbers understand the wisdom of avoiding a structural weld in cast iron... Especially for an engine needing an expensive rebuild.

This is an area that's already too weak, so a strong weld that weakens the surrounding metal is a poor idea.

I wouldn't waste a nickel on a cracked block. Let's hope Billy's problem is something else.

[prebanbilly]

hey guys thanks for the info. just went outside and looked and what i saw was about 1/2 a pound of jb weld or some kind of we ld stuff in the spot
george pointed out. guess i gotta call up tm tractor and get a block.
how would i find out when a block was made? my tractors ser # is 88287
casting # on block 251341R2 other #s are 8-9-s .
im planing to restore my cub so will a differnent block be noticed by judges at a show?

[Bigdog]

the 8-9-S designation indicates a casting date of 8/9/49 which corresponds to your 1949 serial number.

[Lurker Carl]

im planing to restore my cub so will a differnent block be noticed by judges at a show?

Egads! I hope tractor shows never become judged events.

[Ralph]

I have several good rebuildable blocks Price is $150 with pistons crank cam lifters and valves .
If you are interested in one let me know

[Rick Spivey]

Billy,

You absolutely will not beat the deal just offerred to you, and Ralph will NOT sell you junk! Go for it!

[prebanbilly]

hey guys thanks for helping me out ! im gonna buy one of those blocks from Ralpf! for a minute i was a little bummed out cause i couldn't find anything around were i live . alot of green tractor lovers down here in florida :ro ll: now i feel like its a early xmas gift well i post some pics as i do the overhaul of the tractor so you guys can see how it goes along.
i do have some pics of it now But havent had a chance to read up on how to post pics. this is my first tractor so its gonna be fun! so tractor shows are not like car shows? cause if i was to show my stude at the local show they would think its a rolling garbage can because its a backyard street rod! some guys cant get any respect
thanks again billy

[drspiff]

so tractor shows are not like car shows?

Howdy Billy! And welcome! Fear not my friend... We make all the "Correct Police" take a chill pill before they enter. In fact, after hanging around for a while, you may see things like a Cub with a throne.



Or perhaps a Cub that isn't Red



Or even a two seater, tri-cycle Cub



This group of people may be more fun than you have had in a while. Stick around, because it keeps getting better.

Rick (What will they think of next?) Dulas