Mag Rot - How Far Is Too Far?

[Canyon Angler]

Good deal.

FWIW (you may know this already but) vinegar also works to get epoxy off your hands and tools, just be sure, after using vinegar, to wash everything off your skin right away, because the vinegar makes the amines come out of the epoxy, and the amines are what cause skin sensitization to epoxy (sensitization = almost like an allergic reaction you can develop, and it will plague you whenever you work with epoxy thereafter)...

I usually use, in this order -- vinegar, then Gojo hand cleaner, then Dawn dish detergent with maybe some ammonia to counteract the vinegar...I go through epoxy by the gallon, though...

Gojo also works alone to prevent epoxy from hardening (like vinegar)...the West System guys will throw their tools into a bucket of water with Gojo in it, slosh it around and hose the tools off with fresh water. I guess the Gojo emulsifies the epoxy resin-hardener mixture and allows it to be rinsed off...

 

[Vintage Engine Repairs]

Fantastic thanks! I use acetone to clean up epoxy, but it’s not cheap compared to vinegar.

I need to start wearing gloves really, sometimes I do most times I don’t!

 

[Vintage Engine Repairs]

For the guys hanging in there, here is the case with 3 top coats. Sorry about the lighting it’s midnight here!

As for fuel resistance, you won’t have any issues. My tests show that even once submerged in fuel for 3-4 days straight, although the surface will soften, once dried in the sun for an hour will retain full original hardness without any loss of gloss, no change of colour or surface appearance.

note the front AV mount repair, you’d never know zoom in to see clearly.

 

[Vintage Engine Repairs]

Ah dear, here I was thinking I had finished dealing with mag rot...
I’ll get the jB back out again then!...

before cleaning...

After the first (of no doubt many) cleans




time To disassemble it and soak in evaporust

 

[Whiskers]

If it works it works, but it’s crazy how rotted the bar side of the saw is. Must have been cutting a corrosive type tree without bothering to wash the saw down.

 

[Vintage Engine Repairs]

On a positive note, here is a before and after of the AV pocket mount repair and repaint using JB weld and fibreglass.

 

[Mad Professor]

If it works it works, but it’s crazy how rotted the bar side of the saw is. Must have been cutting a corrosive type tree without bothering to wash the saw down.

Bio-oil will do that if you leave it caked on.

 

[Vintage Engine Repairs]

Bio-oil will do that if you leave it caked on.

Ooo I use this, any thoughts if this would cause any problems?

 

[DND 9000]

No that oil will not give you problems.

 

[Mad Professor]

Stihl bio-oil

 

[Vintage Engine Repairs]

cylinder is damaged... the nikasil playing chipped by the exhaust port, here I am smoothing off the step after some great advice from @pioneerguy600

 

[pioneerguy600]

Smooth it down good and it will run for a good while. Not a thing to sell off to someone but for your limited use it will be ok.

 

[Vintage Engine Repairs]

Smooth it down good and it will run for a good while. Not a thing to sell off to someone but for your limited use it will be ok.

Thanks mate perfect stuff!

 

[Jeff Lary]

all looking good Tom be sure to add a photo of the plate chipping after you finish up with your sanding.

 

[trains]

It almost counts for your first porting job too LOL

 

[Vintage Engine Repairs]

all looking good Tom be sure to add a photo of the plate chipping after you finish up with your sanding.

Sure will do Jeff, it’s currently soaking in Evaporust to remove some stubborn carbon

 

[Vintage Engine Repairs]

It almost counts for your first porting job too LOL

Haha all set up for it - all the gear and no idea. I’m interested to learn porting, but I need to be able to reliably tune first .

In fact this won’t be a bad saw to learn on actually! It can sit on the shelf until I’m ready to do so

 

[trains]

Haha all set up for it - all the gear and no idea. I’m interested to learn porting, but I need to be able to reliably tune first .

In fact this won’t be a bad saw to learn on actually! It can sit on the shelf until I’m ready to do so

Port finishing is important, lets see the pics.
Was going to do a wood run, but its blowing a gale here, not playing under eucs in windy conditions.

 

[Vintage Engine Repairs]

Port finishing is important, lets see the pics.
Was going to do a wood run, but its blowing a gale here, not playing under eucs in windy conditions.

Sure thing! Just soaking in Evaporust to get some of the stubborn carbon off and I’ll have pics up

 

[trains]

What was the ring gap in the end ?