~60cc shootout 962 Efco vs 361 Stihl vs 036 Stihl

[Stihl Crazy]

or wonder if it was about spark plug location driven by the external packaging (covers & other stuff)

No, the 156/962 and 165 share the same top covers.

 

[8433jeff]

The 165 is a direct bolt on to a 156 case. The difference is a 1 mm longer stroke on the 165.

SC, have you swapped a piston from one to other yet, do they have the same pin diameter and bearing?

 

[Stihl Crazy]

part #$

No I have not done it yet. Still gathering parts to finish the 165 that was run over. No alot of Efco parts saws around. It can be done easily if rod length is the same. With a stock squish of 0.045 there is a little room to play.

156
pin-50010115R-46mm bore
clip-007201198
bearing-3037014

962
pin-50010031R-48mm bore
clip-007201198
bearing-3037014

165
pin-50010031R-48mm bore
clip-007201198
bearing-3037014

 

[8433jeff]

No I have not done it yet. Still gathering parts to finish the 165 that was run over. No alot of Efco parts saws around. It can be done easily if rod length is the same. With a stock squish of 0.045 there is a little room to play.

156
pin-50010115R-46mm bore
clip-007201198
bearing-3037014

962
pin-50010031R-48mm bore
clip-007201198
bearing-3037014

165
pin-50010031R-48mm bore
clip-007201198
bearing-3037014

Thank you, as my distributor said it couldn't be done. No, there are not a lot of part saws around, and the ones I seen are crazy prices on the ebay. Which is weird, because if the part saws are crazy, one would think a running saw should also bring good money. There was a green 52 last week with a scored cylinder that brought over a hundred bucks shipped.

 

[Stihl Crazy]

New 962 piston is in. Identical to a 165 piston expect for location of ring pins.

 

[timberwolf]

I hope the new 962 piston has a ~34mm wide skirt like the original 962 did.

 

[Stihl Crazy]

Yes it does. The 165 piston is 35mm at skirts.

 

[Stihl Crazy]

Sent the new piston yesterday.

 

[Trigger-Time]

036 was my first big saw. I miss that saw still...always thought it was the total package.

+1

I bought a new 036 in 1994, only trouble it would kick back
and rip the rope out of my hand HARD. More so than 064, 066
I would put it in the class with my 880 and 090 as far as ripping
the rope from my hand.


Another good thread TW!

TT

 

[Stihl Crazy]

The old 152 is still earning its keep. I am not logging as the spring highway weight restrictions are in place, but I am blocking firewood daily with the 152. Going to really test it soon. Putting it on my Norwood Portamill to make some 2x6 lumber.

 

[terry2tmd]

I know nothing about Efco saws, this thread has been a great chance to check them out, with a opinion I can trust

 

[Stihl Crazy]

Any updates TW?

 

[timberwolf]

Made a new brass base gasket last night, squish height between the two pistons was off a few thou. Will put it back together tonight.

Not sure what I can do for video, camera is messed up.

 

[mtngun]

TW, what kind of base compression did you find on the Efco ? I haven't measured mine yet.

Any other observations on the Efco design ? I thought the factory port timing was very conservative, easy to find gains, but otherwise it was a very straightforward design, nothing stopping it from keeping up with a Stihl if given the same timing.

 

[timberwolf]

Off the top of my head the base was between the 036 and 361 in volume. I think the 962 should have the advantage over the stihls in performance, wider piston skirts and room to gain all the compression you would want.

 

[jerrycmorrow]

subscribing. great thread

 

[mtngun]

Well. The suspense is building. opcorn:

 

[Officer's Match]

Well. The suspense is building. opcorn:

Agreed. My CS62 JD is excited to hear more.

 

[StihlBoy440]

going to bump this thread!

 

[Stihl Crazy]

No word from TW since his last post. Probably gone on a fishing trip.