Author Topic: 3450 vent plug replacement  (Read 252 times)

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Offline rockfishon

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3450 vent plug replacement
« on: March 17, 2015, 10:47:02 pm »
Is there a secret to replacing the bronze plug?  I took mine out and the replacement seems to just drop in way to easy.

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Offline Eccentric

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Re: 3450 vent plug replacement
« Reply #1 on: March 18, 2015, 12:59:12 am »
When I've replaced them, they took some force to drive in.  Last one I did, I put a thin skin of Threebond 1194 around the outside circumference to help secure it in place.
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline Cut4fun .

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Re: 3450 vent plug replacement
« Reply #2 on: March 18, 2015, 12:37:21 pm »
If it is that loose you may want to go the husky 372 vent method to replace or go the method Aaron mentioned on top of tank like the 3300 etc are. 

Also make sure you didnt lose your duckbill behind oem.
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Offline Cut4fun .

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Offline Cut4fun .

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Offline rockfishon

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Re: 3450 vent plug replacement
« Reply #5 on: March 18, 2015, 07:53:08 pm »
measurements of the hole and plug:

Hole - .330"
Plug - .325"

I will take a look at the links.  Thanks!

Offline Eccentric

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Re: 3450 vent plug replacement
« Reply #6 on: March 18, 2015, 09:01:00 pm »
Wow.  Yeah if it's that loose then doing one of those refits would be the way to go.
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline Eccentric

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Re: 3450 vent plug replacement
« Reply #7 on: March 18, 2015, 09:08:19 pm »
This is the thread I did on the vent retrofit.  Basically consolidated posts and pics that I'd put in other threads...

http://chainsawrepair.createaforum.com/poulan/poulan-34503750-and-poulanpro-330380-tank-vent-retrofit/


Edit:

Just noticed that this is the same thread that Cut4Fun linked to above.  His link went specifically to one of my posts within the thread...............rather than going to the first post.  I didn't catch that earlier... :-\
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline rockfishon

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Re: 3450 vent plug replacement
« Reply #8 on: March 22, 2015, 09:26:53 am »
I used a little black rtv to hold it in being careful to only get it on the edges.  I hope it sticks.  If not I will try your other method.

Offline 3000 FPS

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Re: 3450 vent plug replacement
« Reply #9 on: March 22, 2015, 11:50:16 am »
I used a little black rtv to hold it in being careful to only get it on the edges.  I hope it sticks.  If not I will try your other method.

I hope the rtv you used is resistant to gas.   Some of it is not.
PP 505, 475, 445.

 

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