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Post by karla48 on Dec 25, 2012 19:23:17 GMT -5
I started Homelite 330 rebuild today, I did all the diagnostics and everything seems like the same symptoms, It doesn't start. It has a good spark, about 120 psi compression, cleaned the carburator but not a pop. I did pull the muffler and the rings look a little worn but I don't see any scoring, and the cylinder looks good. Tomorrow, I will disassemble it. I see a couple of the anti vibration shock grommets are in pretty bad shape, kind of looked at the intake boot through the carburator removed, and it looks Ok, however I will get a better look tomorrow. I will probably go ahead and clean all the parts, replace the rings and intake boot, and then start from there and re-assemble it. No real questions, inless someone has a thought of something else I should check or try?
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Post by karla48 on Dec 25, 2012 21:16:33 GMT -5
Oh, I also put some "LMT" piston and ring cleaner in the engine, and now I can hardly pull the engine over, but it has to soak for a while, so I'll probably try it again tomorrow, and see If it starts, If not, I'm sure its the rings. any other thoughts? I will then probably tear it down, and start to replace the rings. Lol
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Post by redman on Dec 26, 2012 7:59:32 GMT -5
Sounds like your piston and cylinder are really good if the oil loosened the rings up from the grooves that saw could be up in the 170 range on psi.
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Post by redman on Dec 26, 2012 8:04:22 GMT -5
I would have a new intake boot on hand just in case. I believe there is a good thread on here with pictures showing how to change the boot. Very helpful.
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Post by 925fetish on Dec 26, 2012 11:12:04 GMT -5
I AGREE-THESE SAWS WEAK POINT IS THE INTAKE BOOT.
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Post by karla48 on Dec 26, 2012 11:43:31 GMT -5
Thanks for the thoughts, and yes I will replace the intake boot. This is my third homelite 330 rebuild, and I take them all apart, down to the piston and cylinders, and then clean all the parts and inspect everything, bearings etc. Then re-assemble with new parts. I will try to start it again before I tear it all apart, but its still coming apart, It really is much easier to clean all the parts. I even use an ultra sonic jewelry cleaner to clean all the bolts and hardware, Lol.
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Post by tribulation138 on Dec 26, 2012 18:03:49 GMT -5
Thanks for the thoughts, and yes I will replace the intake boot. This is my third homelite 330 rebuild, and I take them all apart, down to the piston and cylinders, and then clean all the parts and inspect everything, bearings etc. Then re-assemble with new parts. I will try to start it again before I tear it all apart, but its still coming apart, It really is much easier to clean all the parts. I even use an ultra sonic jewelry cleaner to clean all the bolts and hardware, Lol. yea me too. i use my sonic cleaner to clean my saw bearings. it really works well. just make sure you lube the bearing quickly after removing from the cleaner.
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Post by karla48 on Dec 26, 2012 18:28:44 GMT -5
Tribulation138, Thanks for the tip about the bearings. I have never tried putting them in the Ultra sonic, I usually jusy swirl them around the bottom of a pint jar with parts cleaner and a lid, that usually cleans them pretty good, and then blow them off with compressed air, and re-lubricate them. I tried starting the 330 again today, and it started right up, so it was definitely a stuck piston. All I did to fix it was to fill the piston head with "LMT" piston and ring cleaner, then pulled the starter to work the rings, a couple times last night, then a couple times this morning, and let it sit for a half an hour or so between moving it. Turned the ignition switch on this morning and it started right up. Too funny. I am still taking it all apart for a thorough cleaning but at least now I know it will start, I love Homelite 330's.
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Post by karla48 on Dec 26, 2012 18:37:34 GMT -5
Oh, Now I'll have to start looking for Homelite 330 number 4, I like that model. I think I can take them completely apart, and put in new rings, a new intake boot, new shock isolators, and back together and running in about an hour. Of course the cleaning, diagnostics, testing, and real thorough inspection of all parts takes alot longer, along with back ordering parts but thats' why I'm staying with one model, so when I find a bad part, I usually Order two parts, and I'm ready for the next rebuild. Lol.
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Post by redman on Dec 28, 2012 16:15:38 GMT -5
I have never personally run one. I have one on the shelf but I've never messed with it. I will probably keep it for parts in case I ever come across one that is in decent shape. I like running super xl's.
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Post by karla48 on Dec 28, 2012 22:33:00 GMT -5
Redman, I should take a new picture of my fleet of Homelite 330's. I am still learning stuff from them, they made lots of little changes over the years, some things so simple, its almost funny (ie. on some of the 330's there is a top hat washer on only one of the carb. mounting bolts, while on others they have a top hat washer on both bolts). The re-built #3, is a real beauty. It almost has no scratched paint, and it runs like its brand new, its a 1981. I took it out today, and cut up some tree tops and branches that have fallen from a recent storm, It cuts so beautifully, it is a heavy saw, but just so much control when cutting. My first Homelite 330, I bought brand new in 1984, and its still running and never stopped except for running out of gas, of course I do maintain my saws, with filters, spark plugs, etc, etc but not alot more. A good cleaning, and resharpening every time I use it too. I just love them!
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Post by redman on Dec 29, 2012 8:52:05 GMT -5
I would like to see them. I like to hear that you know how important it is to maintain your saws, that makes me think you earn your living with a saw? I had never thought of the 330 as a heavy saw. I'm assuming it's fifteen pounds or so? I guess that is a little heavy for limbing. I would like to see what you've done with them, You may even convince me to get mine up and running, eventually, I have a sxlao with no spark but excellent compression so that is my next project. It has some horrible scratches and broken parts. I burn wood in my house, my shop, my greenhouse and my chicken coup, I cut a lot of firewood. I mill my own lumber too, I use a chainsaw mill and have been milling pin oak recently. I lost about eight big oaks this summer when the draw that they grow in dried up. I would love to get a super 650 to mill with but am currently using a 2100cd.
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Post by tommyhnavix on Dec 29, 2012 11:27:00 GMT -5
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Post by karla48 on Dec 29, 2012 17:08:16 GMT -5
Tommy, Thanks for the links, I might be interrested in one of them which is close to my price range. "LMT" stands for "Lawn Mower Tune-up" spray made by "Blaster", and its in a white, yellow, & green colored can, usually around $3.99. It works great on engines (Piston & Cylinders). I usually find it at "Tractor Supply Stores". Its a purple looking liquid, and it eats carbon.
Redman, No I don't have a business, and No I don't work with chainsaws, Its just a hobby. I am retired, and was never interrested in engines until about 2 years ago when my weed whacker wouldn't work, and I was so frustrated. I always took care of my yard tools, doing the normal maintenance recommended in the tools manual. Anyhow, since I was retired I decided I was going to figure out how these things work, Lol. I called and talked with a correspondence school for small engines, who said for $750.- I could take their course and I would be certified. Also Lol. I told them I don't need to be certified, plus for $750.- I could buy three brand new chainsaws. Anyhow I decided to teach myself, and started going to re-cycle centers, and landfills, and found out I could get all the small engines that I wanted to tinker with, also bought several books and manuals on small engines and do alot of reading on the Internet, and watching U-tube videos. In last 2 years since, I have started I have successfully repaired and restored to running order, 15 weedwhackers, 5 power lawn mowers, and 7 chainsaws. They are all running, and I am 100% successful. Oh, I also can now fix all of my own yard equipment too. Too funny.
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Post by karla48 on Dec 29, 2012 17:43:14 GMT -5
Redman, You were right on! Re-build #3 weighed 17 lbs with a 1/4 tank of fuel and bar chain oil filled. Here are some pictures: Also, this is original paint. It has not been re-painted or touched up. This was a fun re-build, Oh I did use it to cut some wood yesterday but haven't cleaned it, so its a little dirty. Lol.
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Post by tommyhnavix on Dec 29, 2012 18:11:20 GMT -5
Saw looks nice Karla Looks like you have done well in teaching yourself what you need to know. There is tons of info available if one care to look hard enough. Sometimes a little book knowledge and some sound guidence from some one with a little more experience one can learn a lot in a short amount of time. I am an information collecting and researching geek sometimes. LOL I have a lot of good internet sources for great information available. I have shared a few on some posts. I will have to make a thread dedicated to some of my resource links to share them here. Here's one you may find interest in. www.dansmc.com/mc_repaircourse.htm It's a free motorcycle repair course. While it's not specifcally about small engines or chainsaws, Dan has some great info on his site about engines and how they work, shop practices, testing proceedures, trouble shooting and more. A two stroke motor cycle engine is built a lot like a giant chainsaw engine. It can be a great reference to answer questions and learn a little more . Tom Will have to try a can of the LMT by PB Blaster. I used to use their penetrating oil for really stuck stuff www.blastercorporation.com/Lawn_Mower_Tune-Up.htmlNow I use a lot of the 50/50 acetone, Dextron ATF mix at my shop though. Its cheap and seems to work better than a lot of penetrating oils I have tried. Looks like they also make some other interesting products also. www.blastercorporation.com/
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Post by karla48 on Dec 29, 2012 19:09:43 GMT -5
Tommy, Thank you for the link, I will check that course out. I actually wrote my own small course, and did a program for a small community service club last year. Of course I would probably re-write some of the materials, now that I know a little more. Lol. However, the community service club loved the program, I could have used a little more time, they gave me about 30-45 minutes to explain, demo, and show and tell small engines both 4 stroke and 2 stroke engines. It took me an hour to set everything up, including a projected power point program that I put together, along with working models set up on tables. But, everyone enjoyed it. Oh, just a quick question about the acetone mix, Do you have any problems with the acetone eating any of the paint ? I like the original paint jobs, even If they are scratched that usually just shows there age as long as they are clean.
Oh, One more comment about the small engine program that I put together. After the program was over I had several people that wanted to know If I could look at their lawnmowers (too funny), I did the program in the spring time when everyone was starting their yardwork. Also for all of those on this forum, Its a great Opportunity to contact any of your local community groups, to offer showing them how to maintain a small engine, or just how they work or just a Demo, they will love to have you, and its a great community service.
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Post by tommyhnavix on Dec 29, 2012 19:24:04 GMT -5
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Post by redman on Dec 29, 2012 20:35:13 GMT -5
Karla48, I am happy to hear that your hobby was born from necessity. Those are the most satisfying ones. That is a nice looking 330, curious, are they wobbly when sitting? Most I have seen have the clutch cover scratched up pretty bad, some completely absent of paint. I know that old McCulloch saws won't sit up good without the bucking spikes. It looks pretty clean to me. I have a stihl ms 310 that I swapped out cylinders with a 390 and opened the exhaust on, I turned the oiler up to keep up with the bigger bar and it flings recycled veggie oil everywhere , so that is a messy saw after a day of cutting.
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Post by karla48 on Dec 29, 2012 22:47:10 GMT -5
Redman, I just lost my post. So I'll begin again, No the 330 chainsaw is not wobbly. I think most of the scrapes and scratches on the clutch cover is because its easier to fuel, and put bar chain oil into the saw with it laying on its side, see pictures. It can be done vertically but not so easy. Bucking spikes were an option but not too many people bought the bucking spikes, its definitely a powerful little engine (53.6 cc), so you can easily buck with it. Lol. The chainsaw was actually available in three versions, there was a 330W (Winter version with a different muffler), 330SL (which I believe had a clutch brake) and a standard 330. They made 330's for many years, so they are definitely not a rare breed, but they did make little tweaks to them over the years, So there are several different IPL drawings for the 330's. Oh, the oiler is a separate piston diaphram pump controlled by a pulse line from the engine. So there are actually three lines on the pump, one for the pulse line from the crankcase, one from the suction line from the oil tank, and one discharge line to the orfice near the bar and chain. There is no oil adjustment screw, and one modification to change the oil flow was to change the spring inside the oil pump. And the only downfall that I have seen on most 330's is they like to piddle a little bar chain oil after they are shut down. I increased the size of the oil lines on this re-build, and wow, this one definitely oils the bar, and also doesn't piddle so I don't know If there is a correlation or not, anyhow they are alot of fun.
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