What's on your bench today?

[MATTMOSS]

Ive came across a 044 that wasnt running. Had a look over it and i noticed when i had the carb off and looked inside the jug that whenever i pulled it over i could only see the side of the piston and not the head/rings. Is this normal?

 

the fuel mix enters the combustion chamber via transfer ports in the cylinder wall from the crankcase. The crown of the piston doesnt travel below the inlet.

The best way to inspect the condition of the piston and rings is to remove the cylinder, the second best way is to look through the exhaust port.

[peatff]

Ive came across a 044 that wasnt running. Had a look over it and i noticed when i had the carb off and looked inside the jug that whenever i pulled it over i could only see the side of the piston and not the head/rings. Is this normal?.

 

It sucks the fuel mix into the crankcase on the up stroke and it enters the cylinder through the transfer ports. If you want to see into the cylinder you need to take the exhaust off.

[spudulike]

The hottest part of the engine is the exhaust side. It is uncommon for a piston to seize around to the inlet side and as others have said, removal of the muffler is the easiest way of inspection, removal of the cylinder is more complete!

[flatyre]

Does anyone know what size and thread the bolts are that hold the two halves of an 070 crank case are and where to get them?

[Will Heal]

Does anyone know what size and thread the bolts are that hold the two halves of an 070 crank case are and where to get them?

 

 

Sorry flattyre I can't help you with that question. But why don't you start a thread documenting rebuilding your 070. I did this with two saws that I rebuilt and got loads of help from members along the way.

 

 

Sent from my iPhone using Arbtalk

[spudulike]

Fired up the Mac 1-40 today....that seemed to wake the village up:sneaky2:

[Pete Mctree]

Bet that sounds magic - olde skool muscle saws are a joy - must be a late 50's early 60's machine

[spudulike]

Around 1959 I think! Had to be done:thumbup:

[spudulike]

Happy Christmas to all, been to Church for a yodel, had my fill of Brussels:blushing:(paying the price!!!), had some fun presents from the Mrs, four mile walk in the afternoon and now watching TV.

 

A nice quiet one for me:thumbup:

 

Thanks to all my customers this year and a prosperous 2017 for all:thumbup:

[IRE David H]

what the first saw to be ported in 2017