661 Oil Pump Max Output

[jmester]

Read in another post here that there is a pin on the oil pump that can driven in or removed so the oil pump control bolt will go another 1/4 turn. Thought I would post some pics of the said pin and location. I pulled my pin so I could always put it back in if need be. The pin boss is deep enough to drive it in flush with the pump. If you decide to drive it in you can use a punch to drive with out taking the pump off.

 

[Cigmaker]

Thanks for sharing that! I was out in the garage thinking about it tonight lol.

 

[2manyhounds]

Read in another post here that there is a pin on the oil pump that can driven in or removed so the oil pump control bolt will go another 1/4 turn. Thought I would post some pics of the said pin and location. I pulled my pin so I could always put it back in if need be. The pin boss is deep enough to drive it in flush with the pump. If you decide to drive it in you can use a punch to drive with out taking the pump off.
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Any idea how much volume the adds?

 

[jmester]

I don't have a clue. I know there are a couple of other members here that have done it hopefully they will chime in.

 

[2manyhounds]

Does the 441 have the same pin maybe?

 

[mdavlee]

I don't know how much it changes output. Should be even on fuel use or real close.

 

[mdavlee]

Does the 441 have the same pin maybe?

Nope. Have to change the parts or get the HO oiler

 

[2manyhounds]

Nope. Have to change the parts or get the HO oiler

Thanks

 

[so il logger]

I don't know how much it changes output. Should be even on fuel use or real close.

Close to tank for tank. Way better than the factory pin restriction limits

 

[mdavlee]

Close to tank for tank. Way better than the factory pin restriction limits

You going to make it down Sat?

 

[so il logger]

You going to make it down Sat?

Hoping to, I'm not doing much good at learning to square file by myself

 

[mdavlee]

Hoping to, I'm not doing much good at learning to square file by myself

I've got a few chains to work on.

 

[so il logger]

I've got a few chains to work on.

I've got one loop that I filed. The rest of my square is headed to a member here to grind. Maybe I can follow his angles better than the wonky factory angles

 

[mdavlee]

I've got one loop that I filed. The rest of my square is headed to a member here to grind. Maybe I can follow his angles better than the wonky factory angles

You will be able to. Factory angles are hard to replicate

 

[2manyhounds]

Not to hijack the thread but what's the benefit of square over well filed round, I tried a buddies square and didn't see any benefit over mine, but maybe there's a difference I didn't notice

 

[so il logger]

Not to hijack the thread but what's the benefit of square over well filed round, I tried a buddies square and didn't see any benefit over mine, but maybe there's a difference I didn't notice

I can't say for sure. Been years since I ran or filed square much. Pretty sure I wasn't filing it properly then.

Mdavlee can tell you. I think with square its all about proper angles. Get that right and its faster than round

 

[2manyhounds]

I can't say for sure. Been years since I ran or filed square much. Pretty sure I wasn't filing it properly then.

Mdavlee can tell you. I think with square its all about proper angles. Get that right and its faster than round

In other words, my buddy didn't have a good angle so no gains

 

[jmssaws]

In other words, my buddy didn't have a good angle so no gains

Yep
If square isn't faster than round it's not done right.
Usually even poor filed square is as fast or ahead of round.