Ah, you got the pin, never removed the last one I rebuilt, had low hours on it and fulcrum was like new.
Steve
Steve
Nik's Poulan Thread
- Thread starter FATGUY
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Andy Mclean
ArboristSite Lurker
You make have to go aftermarket
Steve
Steve
Mine came with it but was a little too wide, I could have filed it down some to make it fit but like I said, mine was like new and wasn't a reason for me to change it. I paid a little over $6 plus free shipping off eBay. Same kit fitted Mac pm605 and pm610. That's a full kit minus the pin.
Steve
Steve
His pin is staked on the circuit plate.
Steve
Steve
This is what I got
https://www.ebay.com/itm/REPL-McCUL...BRO-K10-HDB-285-335-375-395-610-/322359824385
Steve
https://www.ebay.com/itm/REPL-McCUL...BRO-K10-HDB-285-335-375-395-610-/322359824385
Steve
EngineNoO9
ArboristSite Guru
Compression tested my saw (poulan 3700) that I did base gasket delete. Was really just looking to see that I got a good seal but I only ended up at 120 psi. I seem to remember a year ago I was at 150. I did re-ring it. Nothing's changed... Didn't seem to leak down so the Hondabond seemed to hold. I was still going to do the crank seals but since it didn't leak down that shouldn't change anything. Seems low though... Could it be the rings need to seat? I haven't started it yet.
Andy I sent you a PM
If you haven't run it, recheck after about 4 or 5 tanks, should go up after the rings have seated.
Steve
Steve
EngineNoO9
ArboristSite Guru
Awesome.
Yeah I still have a few things to do before I crank it. Oil pump and crank seals. Manual pump works but I'll probably replace the o-rings while I'm at it. Diaphragm will get replaced as I'm not convinced it's pumping well. Line shouldn't be cracked as the manual pump works well.
You will more than likely have to make your own diaphragm unless you find a nos somewhere. On the seals, you will need two quad seals. May sure the two check valve ports are clean, no hi pressure to clean out the ports or you will damage them. Carb cleaner with a straw will work.
Steve
Steve
Brent Nowell
Addicted to ArboristSite
This new piston seems good, I think you got a mixup or something sidewall..
However I can’t even get it off... I tried using a 10-24 bolt and it’s with some sockets and washers and the nuts are not strong enough to pull the pin out.
Do you think I can find some actual grade 5 bolts that fit through the pin hole,, nope! Not at the larger outlets...
Gonna have to try a specialty bolt shop and bring in the pin and go from there...
However I can’t even get it off... I tried using a 10-24 bolt and it’s with some sockets and washers and the nuts are not strong enough to pull the pin out.
Do you think I can find some actual grade 5 bolts that fit through the pin hole,, nope! Not at the larger outlets...
Gonna have to try a specialty bolt shop and bring in the pin and go from there...
EngineNoO9
ArboristSite Guru
Someone on here hooked me up with some stuff.
Early model feature, dropped it later, not needed.
Steve
Steve
Steve
Fixed it, when I first signed up it miss spelled my name, Sidwell. I can't remember what we used when I did mine, it's still on the crankshaft. The 3700 top end assy I got still had the piston attached the the crank.
EngineNoO9
ArboristSite Guru
EngineNoO9
ArboristSite Guru
Also. How does the manual pump side come off to put the o rings on?
Foam is just a way of filtering the air to the pump. To get at the quad ring pop the red cap off ,it's a tuff little sucker then there is a internal snap ring then the spring should push the ring out. Be careful things fly out fast, wrap a cloth around the pump
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