i just got a call from the dealer that i got my 7900 from.. i had it in there for the problem of engine drasticly changing pitch and the engine dying when you turn it from its side to an upright position.. Well today he calls and sais well i got it to where it doesent die anymore.. the engine still changes pitch though like it did.. he said he had the carb appart and that there was a piece of sawdust in there.. and now it just changes pitch when you turn it from side to side.. Well he wants me to pay 55 dollars for that.. and to me it sounds like its just perfectly adjusted or the problem is not even fixed. i havent heard the saw yet.. but i do not think that sawdust is causing this problem.. This dealer still doesent know about the 2 year emmissions warrenty on the saws .. but i confirmed it with terry. So i know the warrenty is a for sure thing.. What should i do here? eat the 55 bucks and take the saw to another dealer and get it fixed right ? i cant believe they would charge me 55 bucks and not even rebuild the dam carb. he told me they reason they change pitch on there side like that is becuase zama is a cheap chineese carb.. what should i do here.. i really dont want to pay for something that is not fixed and when the problem is more then likely coverd by the emissions warrenty that they dont know about
a bit frustrated and need some advice
- Thread starter arborman
- Start date
Help Support Arborist Forum:
tony marks
Addicted to ArboristSite
im glad i didnt jump in and go for this new wonder saw ,that some said was superior to the husk 372. altho its probably a well made saw. the dealer support seems to be iffy. of course my favorite saw of all time ,never needed any dealer support,as it just kept on running.. the 028 stihl my choice for dependable service.
cuttinscott
Addicted to ArboristSite
Arborman... If you could refresh my memory a little how old is this saw? Did you but it new? How much use has it had? The Zama carb on yours is the new style wasn't it? If so it might be the cylinder base gasket leaking. You or your dealer can give me a call if you want. If your dealer does not want to find the problem send the saw to me and I will find the issue.
Scott
Scott
Grande Dog
ArboristSite.com Sponsor
Does it change when you tip it from either side or just one side? When it goes to die on you does it rev up like you're running out of gas or does it rev down like the choke is on? Generally what you're describing is a air leak on a crank seal.
ShoerFast
Tree Freak
- Joined
- Nov 14, 2005
- Messages
- 25,843
- Reaction score
- 17,234
arborman said:
Arborman
Having served on arbitration boards for auto repair, it seems that the Dealer may try to say that your saw has 2 problems, one inherent to the China Carb. (and not an issue) and one user induced by the saw-dust, and he wants $55 bucks?
Your going to want to talk to the Factory and explain that your in full belief that there both related and effecting the saws emissions! Before you go to pick up the saw. ,,,,,, If the saw occasionally still stalls as the pitch changes, your right!
The 2 year emission warranty is the only good thing I can see out of making small hand-held engines comply, as the carb is so very included.
Just to throw the Dealer off guard, just ask to see the chunk of saw-dust?
(as saving parts and effects are required in some areas)
Kevin
THALL10326
The Champ
arborman said:
Sounds more like what Scott said, something leaking. If it has a leak anywhere in the crankcase all the fiddling your tech is doing with the carb isn't gonna fix the problem. Ask him or look at the bill and see if he did a pressure and vac test on the crankcase and a pressure test on the carb. If he didn't then he himself doesn't know whether the crankcase or carb is leaking and is more less charging you for a incomplete analysis of your saw problem. Another possiblity causing what your describing is a fuel filter out of place. Other words it gets hung up near the gas cap instead of laying in the bottom of the tank. When you flip the saw the gas level falls to the right of the filter and bingo the saws dies. When you stand it back up the gas flows back to the hung up filter and it runs fine again. Seen this with alot of people who change their own filters and never push it all the way down to the bottom of the tank. Open your gas cap and see where the filter is. If its right there at your gas cap you need to find another teck to work on your saw.
BIG JAKE
Let’s go Brandon!
I was reading an article at the below link on carburetor adjustment yesterday. It says that if the low speed idle is set too rich fuel can puddle in the intake. It stated that if you let your saw idle 10-20 seconds and rotate the saw at idle from side to side and it stalls then the low speed is set too rich. A different write-up says too lean it can race or surge. Don't know if this may have anything to do with it
Here is the link:
http://ilvirtualforest.nres.uiuc.edu/harvest/timstips/sawburetor.htm
Something simple to try if it doesn't affect warranty-Good luck
Here is the link:
http://ilvirtualforest.nres.uiuc.edu/harvest/timstips/sawburetor.htm
Something simple to try if it doesn't affect warranty-Good luck
its not the low speed ajustment.. i thought that was what it was too.. but its not cuz there is no way to tune the problem out of it.. i dont really know if they pressure tested it.. the saw is a year and a half old..ive had it since new and it really hasent had that much use, i would say right around 100tanks thorough it .. its acted like this since it was new however it was just recently it started to quit when you tip it straight up again.. if you dip the saw forward there is no change in the idle speed.. if you turn it right it has a deep sound like its running to rich .. and if you turn it left.. it gets a higher idle and sounds like its running to lean.. then if you turn it to the right.. and straighten it out to quick it dies .. which i geuss it does not anymore.. however from what he said it still changes idle speeds when you turn it from right to straight and from straight to left. also sometimes it just dies at random while idleing even when its straight up and down. when i talk to them i will try to get them to call you scott.. i wish you guys on here were local dealers because we could sure use some like you around this area. There is one about an hour from here i could take it too to who knows his stuff.. and that may be what ill end up doing if the shop where i bought . the saw cant figure it out. just so i know should the idle speed on this saw change at all when you turn it on its right side then to center then to left? my 7900 is the only one that ive ever ran . if it is the crank seals is that something i could do myself with a little coaching ? being winter and all i really dont have the money for any kind of expensive repair bills .. so if its something i could do myself with out a major chance of screwing up doing it, i may just do that . first i have to get the leakdown test done though to see if it is the crank seals . ive kept up on all the maintanence on the saw.. cleaned the air filter regularly, checked to make sure spark arrester screen is not plugging , ran husky xp oil for the break in and then mobile mx2t at 40 to one for the rest of the time. saws always ran fine accept for the wierd idle which i dont actually remember if it did since new , it was either that or just shortly after the first few tanks through it . I know i should of taken it in sooner but i figured it would work itself out of it , or that it was just a finaky low speed adjustment or something that i couldent quite get right.. but now ive figured out that is not the case.. either way it could be a lesson learned.. i should of taken it in and had it looked at right away while under the full warrenty . rather then thinking it was something that would work itself out. i still like the saw thought either way. Dont at this point yet know if i would buy another , and if i did i would buy it from a dealer who deals more with chainsaws then the dealer that i got it from. Thanks for all of your help!.
166
Addicted to ArboristSite
arborman,
If you want send your saw to us. We will fix it & send it back to you No Charge. All you will pay is shipping to us! I will only need a proof of purchase from you.
We can probably have it fixed and sent back to you the same day.
Just contact myself or cuttinscott if you're interested.
Steve
If you want send your saw to us. We will fix it & send it back to you No Charge. All you will pay is shipping to us! I will only need a proof of purchase from you.
We can probably have it fixed and sent back to you the same day.
Just contact myself or cuttinscott if you're interested.
Steve
sugarbush
ArboristSite Guru
your saw has to be pressure tested. that will include any crankcase or carb leak. the test needs to be both pressure and vaccum. also pressure check gas line. have you noticed if it does this when gas tank is completly full? brian.
THALL10326
The Champ
arborman said:
Your description sounds like a air leak but it really makes no differance whether its a leak or something else. If your tech went through the whole testing and troubleshooting process your saw would be running right or you would know exactly what the problem is. The entire testing and troubleshooting process takes less than a hour and whatever is causing the problem will be found during the steps. Look at the bill real close and see exactly what all they did. For 55 bucks the testing and troubleshooting steps should be on the bill. If they aren't then you pretty well know why they can't get your saw running correclty. A saw that exspenive and powerfull surely is worth alot more than 55 bucks to get it right but to spend 55 bucks and still not running right, I can't blame you for being doubtfull about the shop that worked on it.
Lakeside53
Stihl Wrenching
I'm agreeing with just about what everyone else has said... particularly "pressure test"... I see this problem now and then (on Stihls) and it almost always a carb boot, impulse hose, fuel hose or something similar. Sometimes, it's crank seals... Pressure/vac test of the engine, then the fuel system will show the problem.
Take 166 up on his kind offer. 166 please tell us what you found.
Take 166 up on his kind offer. 166 please tell us what you found.
wradman
ArboristSite Operative
saw
hold it closer to the computer so we can all have a better look .lololololmao I'm so funny in my own mind.
the problem is all of the above.
hold it closer to the computer so we can all have a better look .lololololmao I'm so funny in my own mind.
the problem is all of the above.
sugarbush
ArboristSite Guru
a kind offer by another dealer out of state isn't the answer, you bought locally and should be fixed locally. if the shop it was bought at can't fix it correctly, contact dolmer and email them your problem. also there shouldn't be a $55.00 charge if it isn't fixed as it should be. you didn't take it in to have half the problem fixed and that may not have been done. may have just richened up the fuel to keep it from dying. if that was done may lead to another problem, there's a saying with 2 cycle mechanic's, ( if it's running rich it'll soon run lean.) brian.
ShoerFast
Tree Freak
- Joined
- Nov 14, 2005
- Messages
- 25,843
- Reaction score
- 17,234
sawn_penn said:So you say "prove that it was sawdust, if you can't show me sawdust I'm not paying." Can you imagine a saw shop that couldn't find a chunk of sawdust out the back somewhere?
Saw Pen
Thats just what I would want, that would give me the toe hold especially if he brought back a piece of saw-dust!
,,,,,,,Lets just call it a conversation starter!
There is not much that I hate more then Lier's, Cheats or Incompetent Mechanics!
But there is one thing that I would bring to the table in the little talk with that Dealer, and thats the ability to tell if someone was lying!
If he brought back just any ol speck of saw dust, it gives your every right to close the gap and straight up ask him "did you just bring me just any ol speck of saw-dust?" If his ears turn red, grab the cards cause it's your turn to deal.
With that and if the saw wasn't fixed, what else would you want? He would be toast!
That would be about as good of timing as any to start the saw and see if it's fixed?,,,,,,,,, I wouldn't pay for his misguided education!
Just read how real Mechanics deal with real problims here! ,,,,, They try to help, and care! ,,,,, It would be a good bet , by the talant here, that it's an air-leak,,,,, so were would you be with that speck of saw-dust now?
Kevin
Grande Dog
ArboristSite.com Sponsor
From what you're describing, I would think it's the clutch side crank seal. Your're talking a $6.00 part that a shop could install in about 15 minutes.
