Well, I did it, I tore into my 550xp.

[nmurph]

I believe you can omit the gasket, but you need to measure to check and prevent a catastrophe.

 

[HuskStihl]

Piss-poor attention to detail on the assembly. The swedes need to pay more attention. I would definitely show the dealer. If I were husky I'd give you a whole new saw.

 

[XSKIER]

Uhmm. While I can appreciate the flimsy build quality of that saw, is that loose connection really going to score a p/c? It is a "fresh air" passage, no fuel/oil goes through there anyway. It seems to me the saw would've had a poor idle and throttle response, with little to no effect at wot in wood.

 

[HuskStihl]

If too much fresh air gets in, the carb won't be able to compensate

 

[skylogger]

What do y'all clean off the old saw dust with can I just spray carb cleaner everywhere? And also the built up crud in the top of the cylinder?

 

[troylee]

Clean before disassembly with air compressor. At this point of the project I will let the pros answer

 

[AKDoug]

Hose it down with brake kleen. Works fine. Just try and keep from blowing junk into the engine.

What build up in the cylinder?

 

[skylogger]

All the crude at the top I would like to get it looking new again

 

[XSKIER]

If too much fresh air gets in, the carb won't be able to compensate

Too much air with a 30% blockage and a 2% leakage?

 

[AKDoug]

All the crude at the top I would like to get it looking new again

I have abrasive pads that I mount into a drill to grind it off. No pics, though, I'm nowhere near the shop.

 

[wigglesworth]

Likely an air leak at the intake, that the AT wasn't fully able to compensate for - the P&C likely would have been much worse on a saw without AT.

No, it would had never left the dealer like thacause it wouldn't had idled down...

 

[skylogger]

All right fellers I ordered a new piston and boot, now wondering if I don't put the gasket back in what do I use to seal it and what clearance should I have up top?

 

[skylogger]

And what do y'all use clean the carb my carb cleaner can says to avoid electrical connections?

 

[Adirondackstihl]

All the crude at the top I would like to get it looking new again
View attachment 383225

I use carb cleaner and coarse steel wool for dat

 

[tlandrum]

you should have found a better dealer to deal with. that should have been a warranty claim.

 

[skylogger]

Yeah when I saw the rubber boot pinched I was surprised that would come from the factory like that and figured if I brought the saw in pieces and asked for a warranty repair they would think I was an idiot.

 

[Mastermind]

You can't pull the base gasket on that saw......not without machine work.

 

[Chris-PA]

Uhmm. While I can appreciate the flimsy build quality of that saw, is that loose connection really going to score a p/c? It is a "fresh air" passage, no fuel/oil goes through there anyway. It seems to me the saw would've had a poor idle and throttle response, with little to no effect at wot in wood.

Damn I hate to agree with XSKIER, but well.... How much could that leak flow compared to the wide open air valve + throttle plate? At idle however, when the air valve is supposed to be closed and the throttle almost closed, it might be more significant.

On the other hand, something damaged it, and something was found that is definitely wrong. Hard to imagine they are not connected. Maybe it let debris in?

 

[skylogger]

Crapola I didn't order a new gasket is it ok to use the old one?

 

[skylogger]

And how in the world do y'all clean the buildup out of the exhaust port in the cylinder?