Author Topic: dolmar 5105 piston....solid or windows?  (Read 1287 times)

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Offline 7sleeper

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Re: dolmar 5105 piston....solid or windows?
« Reply #10 on: January 26, 2014, 04:49:32 am »
Do you have an ultrasound cleaner? I would highly recomend one of those for your carb. I have one of the jewlery very small models without heat. They would be absolutely sufficient if you don't need it often. It still works great. My procedure is dismantle the carb and place it into the us cleaner and add:
1. hot faucet water with simple green and run it max time
2. new! hot faucet water with simple green and run it max time
3. new! hot faucet water with simple green and run it max time
4. new! hot faucet water without anything!!! and run it max time, this is to remove any "soap" residues
5. blow dry carefully with the compressor, spray through all the holes with wd40, reassemble, run saw

!!!!What is important when exchanging the water => dumping the old water/dirt mix into the sink, is to dump it through a strainer/filter/sieve whatever! Because small parts like going down the drain too... Don't ask how I know!

Good luck!

7

Offline KilliansRedLeo

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Re: dolmar 5105 piston....solid or windows?
« Reply #11 on: January 26, 2014, 10:18:17 am »
Quote
Do you have an ultrasound cleaner? I would highly recomend one of those for your carb. I have one of the jewlery very small models without heat. They would be absolutely sufficient if you don't need it often. It still works great. My procedure is dismantle the carb and place it into the us cleaner and add: 1. hot faucet water with simple green and run it max time 2. new! hot faucet water with simple green and run it max time 3. new! hot faucet water with simple green and run it max time 4. new! hot faucet water without anything!!! and run it max time, this is to remove any "soap" residues 5. blow dry carefully with the compressor, spray through all the holes with wd40, reassemble, run saw

!!!!What is important when exchanging the water => dumping the old water/dirt mix into the sink, is to dump it through a strainer/filter/sieve whatever! Because small parts like going down the drain too... Don't ask how I know!

7 +1 on that/ KilliansRedLeo
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Offline Cut4fun

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Re: dolmar 5105 piston....solid or windows?
« Reply #12 on: January 26, 2014, 11:25:46 am »
zama carbs were known for trouble on the 5100 saws, don't know if the 5105 has same carb.  ?
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Offline 660magnum

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Re: dolmar 5105 piston....solid or windows?
« Reply #13 on: January 26, 2014, 11:44:28 am »
One of the more common ailments with the carbs is damage to the high speed nozzle check valve possibly caused by high pressure air being blown into the carb.
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Offline fordfairlane78

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Re: dolmar 5105 piston....solid or windows?
« Reply #14 on: January 26, 2014, 01:00:13 pm »
Thanks for all the help guys. I have been thinking about getting an ultra sonic cleaner. I think this one is a jet problem as from what I have found from the original owner the saw had this issue from the beginning.  He took it to a dealer, the said they fixed it and after a couple hrs poof stuck ring. He got a new one from dolmar and bought this back. He had a lengthy thread on another site about his experience. I am going to pick up a cleaner but for this I think I will get another carb....This carb was used on 5100,510,& 5105 so should be something out there.
Trapped in time, surrounded by evil, low on gas

Offline fordfairlane78

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Re: dolmar 5105 piston....solid or windows?
« Reply #15 on: January 29, 2014, 08:17:42 pm »
Alright purchased a used carb off of ebay with the last #'s of 57a and still same problem.....how many of these zamas were junk from the get go? so far my experience with them is 1 out of 3 good.....not a good ratio for a carb used on proffesional saws......are there any alternatives carb wise for these or am I going to be stuck buying one brand new and crossing my fingers? they are running around $100 from the little research I have done.........
Trapped in time, surrounded by evil, low on gas

Offline farmboy

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Re: dolmar 5105 piston....solid or windows?
« Reply #16 on: January 29, 2014, 10:08:24 pm »
I guess I've been lucky not had any carb issues on any of my 6-5100's.
Shep

Offline Nathaniel Vansickle

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Re: dolmar 5105 piston....solid or windows?
« Reply #17 on: February 04, 2014, 05:21:35 pm »
No real problems with the 5100 carbs either. A few that ended up lean after break in and had to replace under warranty because of the epoxy. new carb through Dolmar is $105 or a new one straight from Zama is only $51. Only difference between them is the one from Zama doesn't not have the plastic clip for the throttle cable on it. you have to reuse your old one.
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Offline mdavlee .

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Re: dolmar 5105 piston....solid or windows?
« Reply #18 on: February 05, 2014, 07:54:12 am »
The solid sided piston should make more power if its like the 7900.

Offline KilliansRedLeo

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Re: dolmar 5105 piston....solid or windows?
« Reply #19 on: February 05, 2014, 09:25:30 am »
Just yesterday I replaced the dished piston in a HVA 261 with a slab sided piston out of a HVA 365 Special. Stock 262XP and 261 pistons are windowed. I actually have two identical saws a 261 with a 262XP piston and a 261 with a 365SP piston. Both were built up for a tutorial I am doing. I will post results of head to head performance if anyone is interested. I too am interested to see if the type of gains seen in the 7900 are achievable elsewhere.
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

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