Engine lets out a puff of smoke but doesn't even sputter when attempting to start

[jetpackjbd]

Another satisfied customer.

Satisfied customer of you, unsatisfied customer of Briggs and Straton.

 

[slomo]

Satisfied customer of you, unsatisfied customer of Briggs and Straton.

Ah, don't go away mad. I've got 5 old Briggs that are perfect. Tip there was old. I love Briggs. Not a fan of their new garbage like you.

You bought the cheapest disposable mower you could find. Notice no commercial guys use the same kind you have? LOL

 

[jetpackjbd]

Ah, don't go away mad. I've got 5 old Briggs that are perfect. Tip there was old. I love Briggs. Not a fan of their new garbage like you.

You bought the cheapest disposable mower you could find. Notice no commercial guys use the same kind you have? LOL

Nah, I'm not really upset with B&H. It seems like the old owner didn't care for it very well, and it was 20 years old. We just needed something that could cut our lawn easily for a decent price.

I've tore it apart and found the pieces of the conrod, just bought a new one. Hoping that fixes it, nothing else seems wrong.


Here's it taken apart:


I think the previous owner never did an oil change...

 

[slomo]

Probably used that ultra grade Amsoil 25,000 mile stuff which equates to like 648,000 lawns cut LOL.

Jesus, is that a Diesel engine LOL. Talk about some black tar sludge. Looks like a rear end cover off a Cheby truck.

Keep us posted on the refresh buddy.

 

[jetpackjbd]

Probably used that ultra grade Amsoil 25,000 mile stuff which equates to like 648,000 lawns cut LOL.

Jesus, is that a Diesel engine LOL. Talk about some black tar sludge. Looks like a rear end cover off a Cheby truck.

Keep us posted on the refresh buddy.

I wouldn't doubt the previous owner tried running it on half diesel at one point lol.

The conrod should arrive tomorrow, but I can't get the piston out. Any ideas?

 

[bertsmobile1]

My go to for stuck pistons is grease
pack as much junk. gears , ball bearings whatever as you cam into the engine then fill the remaining space with grease.
The :junk" is just there to take up space & reduce the volume of grease used.
Get the cylinder good & hot so the grease melts down & fill all of the voids and fill the cylinder right up to the top.
Then refit the head , no pushrods so both valves are closed, if they are leaking then lap them first .
Now I have a grease injector which is an old spark plug body with a grease nipple in it.
it goes in loose and grease is pumped in till it oozes out along the threads
The injector is then tightened up
More grease is pumped in till I can not put any more in.
If the piston has not shifted then I pop it in the oven ( BBQ , heat with a big torch etc et etc )
the internal pressure has always popped the piston without any further damage and some of these engines are better than 100 years old

 

[jetpackjbd]

My go to for stuck pistons is grease
pack as much junk. gears , ball bearings whatever as you cam into the engine then fill the remaining space with grease.
The :junk" is just there to take up space & reduce the volume of grease used.
Get the cylinder good & hot so the grease melts down & fill all of the voids and fill the cylinder right up to the top.
Then refit the head , no pushrods so both valves are closed, if they are leaking then lap them first .
Now I have a grease injector which is an old spark plug body with a grease nipple in it.
it goes in loose and grease is pumped in till it oozes out along the threads
The injector is then tightened up
More grease is pumped in till I can not put any more in.
If the piston has not shifted then I pop it in the oven ( BBQ , heat with a big torch etc et etc )
the internal pressure has always popped the piston without any further damage and some of these engines are better than 100 years old

Thanks for the advice! To clarify though, I'm reusing the piston so I'd like to do as little damage as possible. Excessive heating might not work well. I'll try shoving a ton of oil in it though, hopefully it works. The piston moves but I just can't push it out. I'll try this in a bit

 

[bertsmobile1]

Full story is a bit different
Piston should come out from the top ( head side ) of the barrel
At the very top of the barrel there will be a ridge of carbon that needs to be removed
They make a really expensive tool called a ridge reamer to remove it without damaging the barrels
Google Ridge Reamer and you should find a mile of you tube videos showing what they look like & how to use them
I usually use a Dremel tool & wire brush to remove it

 

[jetpackjbd]

Full story is a bit different
Piston should come out from the top ( head side ) of the barrel
At the very top of the barrel there will be a ridge of carbon that needs to be removed
They make a really expensive tool called a ridge reamer to remove it without damaging the barrels
Google Ridge Reamer and you should find a mile of you tube videos showing what they look like & how to use them
I usually use a Dremel tool & wire brush to remove it

Ohhh, is a carbon ridge the carbon buildup on the edges of the top of the cylinder?

 

[bertsmobile1]

Yes