34cc Poulan
06-07-2004 | 03:19 PM
#1
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From: Hiram,
GA
34cc Poulan
I have an extra Poulan model 2150 chain saw sitting around and was wondering if anyone has converted the 2.1 ci/34cc engine. If so, how would you compare the power output with a Ryobi 31cc ? By the way, I am not looking for an electronic ignition conversion. I am planning on sticking with mag ignition. Thanks for any advice or info you can provide.
Rich
Rich
06-10-2004 | 10:39 AM
#3
RE: 34cc Poulan
Hi
I like to help you because I see no others volunteer.
I have converted a Homelite 38cc chainsaw engine and a Weedeater 25 cc and both take a lot of abuse in a test stand and we , in the club fly a Homelite 25cc with success and a Weedeater 18 cc very tired and with electronic ignition.
I have a bit of background and a knowledge of 2 stroke engines playing with mopeds.
The construction of the chassis of Poulan and Homelite is almost the same, plastic chassis and the engine is attached at bottom with four screws.
You must carefully clean the chainsaw to avoid dirt inside the engine in the next steps.
First , put the chainsaw on the bench and disasemble all around and the last thing you make is unscrew the four screws of bottom carefully because all aluminiumblock fall and you can damage it because the block split in two and can expose the cranksahft and piston to shocks.
This is in general, I dont know how is the coil atached to the engine , if the coil is screwed to the engine ,GOOD!
I believe the carb is atached to the engine thru a plastic adapter, no rubber hose, if plastic adapter , GOOD!
If it have compression you can afford the conversion.
The standard ignition is good, but need a starter or a Black & Decker drill bit machine with reverse , may be a battery powered drill, good price when compare with airplane starters.
You can see a very similar engine conversion process int this site in the post "Homelite 33" .The only difference may be ignition coil attachment and the carb adapter.Good photos and also see the redirected sites for photos.
The adapters to atach to standard motor mount is the same.
Good luck and be patient.
Oh, I forget, I suppose the chainsaw you have is the model with plastic outer chassis, this model I know.
Sorry my english.
The standard ignition with proper air gap is generally hard to start , aprox speed to deliver spark is more than 500 rpm, say who knows but when it start it is reliableif the system have proper care.
You can get in touch with Carr precision, and Waker engines for conversion parts.
Have a nice conversion
I have very hard start when take my first engine to convert , be patient, you have better luck because I have no RCUniverse and it provide a lot of info and photos.
See converted engines in your club, it helps.
Jose
Argentina
I like to help you because I see no others volunteer.
I have converted a Homelite 38cc chainsaw engine and a Weedeater 25 cc and both take a lot of abuse in a test stand and we , in the club fly a Homelite 25cc with success and a Weedeater 18 cc very tired and with electronic ignition.
I have a bit of background and a knowledge of 2 stroke engines playing with mopeds.
The construction of the chassis of Poulan and Homelite is almost the same, plastic chassis and the engine is attached at bottom with four screws.
You must carefully clean the chainsaw to avoid dirt inside the engine in the next steps.
First , put the chainsaw on the bench and disasemble all around and the last thing you make is unscrew the four screws of bottom carefully because all aluminiumblock fall and you can damage it because the block split in two and can expose the cranksahft and piston to shocks.
This is in general, I dont know how is the coil atached to the engine , if the coil is screwed to the engine ,GOOD!
I believe the carb is atached to the engine thru a plastic adapter, no rubber hose, if plastic adapter , GOOD!
If it have compression you can afford the conversion.
The standard ignition is good, but need a starter or a Black & Decker drill bit machine with reverse , may be a battery powered drill, good price when compare with airplane starters.
You can see a very similar engine conversion process int this site in the post "Homelite 33" .The only difference may be ignition coil attachment and the carb adapter.Good photos and also see the redirected sites for photos.
The adapters to atach to standard motor mount is the same.
Good luck and be patient.
Oh, I forget, I suppose the chainsaw you have is the model with plastic outer chassis, this model I know.
Sorry my english.
The standard ignition with proper air gap is generally hard to start , aprox speed to deliver spark is more than 500 rpm, say who knows but when it start it is reliableif the system have proper care.
You can get in touch with Carr precision, and Waker engines for conversion parts.
Have a nice conversion
I have very hard start when take my first engine to convert , be patient, you have better luck because I have no RCUniverse and it provide a lot of info and photos.
See converted engines in your club, it helps.
Jose
Argentina
06-10-2004 | 07:48 PM
#6
My Feedback: (6)
RE: 34cc Poulan
It seems to me that at one point someone said the smaller Poulans like yours had the magneto mounting points for the coil cast on the engine housing. The larger ones have the coil mounted on the plastic saw part, so you either have to cobble up some kind of a mounting, or use electronic ignition which is what I do. The 42 & 46cc Poulans make great conversions. Pull your side cover off, and see how the coil mounts to be sure. It should make a good conversion.
Good luck,
Av8tor
Good luck,
Av8tor
06-10-2004 | 08:38 PM
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From: Naples,
TX
RE: 34cc Poulan
The 46 is the only current Poulan saw engine that has the coil mounted on the engine. You'll have to use an electronic ignition or fabricate a coil mount for the rest. Here's a shot of my Poulan 36.
06-14-2004 | 10:21 PM
#9
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From: Houston, TX
RE: 34cc Poulan
The main advantage of the smaller Poulans (42cc and less) is that the stock carb insulator is bolted to the cylinder, so you don't have to buy or make one like you have to for the 46cc. Disadvantages are:
1. They all weigh about the same, from 33 to 46cc.
2. 33cc-42cc engine have much thicker fins than the 46cc.
3. The smaller 33cc-42cc engines, in stock form, actually occupy a larger "footprint" than the svelte 46cc, so you might have to cut more of the cowl.
4. Coil NOT mounted on cylinder, so reusing the stock magneto is a challenge, but no big deal if elec. ign is to be used.
5. The stock carb adapter doesn't allow the throttle lever to line up with the thrust line, so you'll have to rig up a bell crank system.
6. Unlike the 46cc, the smaller Poulans don't have separate mounting lugs, so you'll have to reuse the four lower crankcase cover bolts.
All the Poulans chainsaws make good conversion motors, which usually end up weighing not much more than many of the weedie conversions, but are more powerful.
1. They all weigh about the same, from 33 to 46cc.
2. 33cc-42cc engine have much thicker fins than the 46cc.
3. The smaller 33cc-42cc engines, in stock form, actually occupy a larger "footprint" than the svelte 46cc, so you might have to cut more of the cowl.
4. Coil NOT mounted on cylinder, so reusing the stock magneto is a challenge, but no big deal if elec. ign is to be used.
5. The stock carb adapter doesn't allow the throttle lever to line up with the thrust line, so you'll have to rig up a bell crank system.
6. Unlike the 46cc, the smaller Poulans don't have separate mounting lugs, so you'll have to reuse the four lower crankcase cover bolts.
All the Poulans chainsaws make good conversion motors, which usually end up weighing not much more than many of the weedie conversions, but are more powerful.
