Danger Dan
ArboristSite Guru
Picked up an 046 from ebay. It's an old work saw that was described as a runner. Gonna go thru it, clean it it up and stick a pipe on it.
that is a fine looking pipe welds look real good but did u figure all the #'s from the saw port timming,blowdown,area? did not see any of this info yet so was wondering. what fuel are u going to run? we need more details or at least i would like to know more.
jnl
So how did it run?
Gonna run gas and originally figured the numbers, (using Timberwolf's formula) from:
Exh Dur = 164'
Xfer Dur = 124'
Blow Dn = 20'
Exh Nozzle = 29h x 31w x 25d
RPM = 13000
For this thread gonna increase to:
Exh Dur = 170 - 180'
Blow Dn = 25 - 30'
Here is the current port timing, (with gasket) of the ebay special:
Exh Dur = 156'
Xfer Dur = 106'
Blow Dn = 25'
Will post more info as the thread progresses,
Thanks
Im still REALLY new to this and only have experience with basic gasket matching type porting, So now my newbee question!
How do I go about figuring out the "blow down". Figuring out the timing and duration are by using a degree wheel per compression stroke, am I correct on this? Dont mean to annoy just interested in learning more. Thanks
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