Aftermarket parts strike again

[stihltech]

Worked on an 029 super in the shop. Very clean unit. Will not start.
Customer has replaced sparkplug, fuel hose, fuel filter and air filter. ALL aftermarket.
Has compression and spark. No fuel. Carburetor completely dry inside.
Pressure and vacuum test pass with flying colors. Good pulse from hose in air box. Fuel tank vent open. Exhaust and screen clean, port clean. Piston very good shape through intake and exhaust ports.
Put on another carb to try it. Still dry inside.
The saw is now fixed. Runs great.
So what did I replace to repair it?

 

[ammoaddict]

I would hope you replaced it with a Husqvarna.

 

[pioneerguy600]

Not getting fuel through to the carb, fuel line or tank filter.

 

[hotshot]

Ain’t got no gas in it!

Fuel it up, remove the kinks from the DIY fuel line & put on a new Walbro 125-528 fuel filter.

 

[jellyroll]

Aftermarket parts are garbage.

 

[pastryguyhawaii]

I vote fuel filter. I bought some aftermarket ones once that worked for about a tank then they wouldn’t run. Took me a while to figure out because you don’t suspect a just replaced part. Never again.

 

[Woodslasher]

I'd guess the fuel line got way too gummy and/or cracked.

 

[thenne1713]

Worked on an 029 super in the shop. Very clean unit. Will not start.
Customer has replaced sparkplug, fuel hose, fuel filter and air filter. ALL aftermarket.
Has compression and spark. No fuel. Carburetor completely dry inside.
Pressure and vacuum test pass with flying colors. Good pulse from hose in air box. Fuel tank vent open. Exhaust and screen clean, port clean. Piston very good shape through intake and exhaust ports.
Put on another carb to try it. Still dry inside.
The saw is now fixed. Runs great.
So what did I replace to repair it?

I can only suspect slight kink in fuel line (too long/ too short?) was stopping free flow of fuel

 

[a. palmer jr.]

I'm as bad as anybody about using aftermarket parts but on an 029-290 family of saws I never replace the fuel line with aftermarket because of the bend in the line right before the carburetor. Aftermarket lines seem to always kink there shutting off the fuel..

 

[sliceoflife]

My guess is Fuel filter. Probable had a blob of solder or melted plastic in the barb/nipple.

 

[ballisticdoughnut]

If it wasn’t picking up fuel after verifying pulse and passing pressure/vacuum test I’d say either fuel hose or fuel filter. Or both?

 

[Mad Professor]

Friends don't let friends own clamshells.....

 

[stihltech]

The fuel hose has a small piece of flashing inside from the molding process that is restricting the fuel flow. New hose and the saw runs very well. Replace the fuel filter (had the small trimmer one) and the sparkplug (Savior?) as I have to stand behind it now that I touched it.
Air filter did not affect the saw performance in the cut or idle ( no choke flap in the filter on this saw).
Gave the customer his parts back.

 

[RedneckChainsawRepair]

Aftermarket fuel line is a known issue for years. The molded line for this series. They also kink at the bend and stop fuel flow.

I cut afm and oem to show how thin walled the afm is many years ago.

For guys that dont want oem molded line cost local. I use echo line with just the grommet.

 

[MudgeHollowBeaver]

I got a package of cheap aftermarket fuel filters for my saws, but observed that whatever type of foam material that they used for the inner part of the filter just turned into a gob of mush within a few months...(but the price was sooo good at the time)

 

[Gord404]

Why would China start improving the quality of anything if they can sell loads of stuff at a cheap price because people want to save a buck but usually cost them more in the long run.

 

[sliceoflife]

Wouldn't it be crazy if China produced the OEM stuff and the no-name stuff.

 

[ammoaddict]

Wouldn't it be crazy if China produced the OEM stuff and the no-name stuff.

They do make a lot of the oem stuff. Stihl has plants in china.

 

[lone wolf]

They do make a lot of the oem stuff. Stihl has plants in china.

Spot on !

 

[sliceoflife]

There needs to be [sarcasm][/sarcasm] tags.