Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: Cut4fun . on August 12, 2016, 02:19:22 pm

Title: Husqvarna 351
Post by: Cut4fun . on August 12, 2016, 02:19:22 pm
I cant remember the details on these. Husqvarna 351 were like the 353 or the 350.  Thinking it was the metal crankcase like 353.

Come with 44mm bore or the later 45mm bore.  Dished or flat top piston stock?

Title: Re: Husqvarna 351
Post by: 660magnum on August 12, 2016, 02:30:28 pm
44mm but looks like a 350 cyl mag crankcase like a 353 flat top piston
Title: Re: Husqvarna 351
Post by: old guy on August 13, 2016, 09:11:26 am
Same saw as 353 - 346 except has the 44m/m open port cyl of the 350, both of mine now wear 346 cyls, one OE & one NE.
Title: Re: Husqvarna 351
Post by: wild262 on August 15, 2016, 07:54:25 am
I cant remember the details on these. Husqvarna 351 were like the 353 or the 350.  Thinking it was the metal crankcase like 353.

Come with 44mm bore or the later 45mm bore.  Dished or flat top piston stock?


Easy way to know what cylinder you have is to look to see if it has the removable transfer caps on the side.  Only the 45mm had them.  And if its not wore off, the number "44 or 45" should be stamped on top of cylinder.  44mm mostly were blue ink, and the 45mm were black ink.  The (EPA) 351 came out in late 2002.   After 2003, the 351 had the 353 45mm jug on them I believe as I had one.   Be careful about mis matching the cylinder bolts as the early ones had course thread and later ones had fine thread.  Fine thread started around 2005 and affected most all models with metal case, 351, 353, 346xp, Jonny models:  2147 (346oe), 2149 (351), 2152 (353), 2153 (346ne).





Title: Re: Husqvarna 351
Post by: SawTroll on August 19, 2016, 06:52:00 pm
Same saw as 353 - 346 except has the 44m/m open port cyl of the 350, both of mine now wear 346 cyls, one OE & one NE.

True - and the 351 never got the 45mm 353 cylinder with a dished piston like the EPA version of the 350 did. There is a possibility that some late production 351s had a closed port 44mm cylinder that was made the same way as the 353 top end though, as it is a fact that some late production Jonsered 2149s did (basically same saw).

The 351 was replaced by the 353 some time in the second halv of 2002. Everything except the top end was the same between the 346xp (OE), the 351 and the 353 - with the usual exception of changes that was a matter of production time and not model.
Title: Re: Husqvarna 351
Post by: Bluegill on August 26, 2016, 07:10:21 pm
I picked up a good 351 and gave it to my brother 4-5 years ago.
Had planned to put a 346 top-end on it, but it runs too good to mess with.
Title: Re: Husqvarna 351
Post by: SawTroll on January 20, 2017, 01:16:25 pm
Same saw as 353 - 346 except has the 44m/m open port cyl of the 350, both of mine now wear 346 cyls, one OE & one NE.

True - and the 351 never got the 45mm 353 cylinder with a dished piston like the EPA version of the 350 did. There is a possibility that some late production 351s had a closed port 44mm cylinder that was made the same way as the 353 top end though, as it is a fact that some late production Jonsered 2149s did (basically same saw).

The 351 was replaced by the 353 some time in the second halv of 2002. Everything except the top end was the same between the 346xp (OE), the 351 and the 353 - with the usual exception of changes that was a matter of production time and not model.

I finally found evidence that some months worth of 351 production in 2002 actually came with such a top end, in one of several hundred service bulletins made available to me by @ray benson.
Title: Re: Husqvarna 351
Post by: David Young on February 13, 2017, 09:16:18 am
Same saw as 353 - 346 except has the 44m/m open port cyl of the 350, both of mine now wear 346 cyls, one OE & one NE.

True - and the 351 never got the 45mm 353 cylinder with a dished piston like the EPA version of the 350 did. There is a possibility that some late production 351s had a closed port 44mm cylinder that was made the same way as the 353 top end though, as it is a fact that some late production Jonsered 2149s did (basically same saw).

The 351 was replaced by the 353 some time in the second halv of 2002. Everything except the top end was the same between the 346xp (OE), the 351 and the 353 - with the usual exception of changes that was a matter of production time and not model.

I finally found evidence that some months worth of 351 production in 2002 actually came with such a top end, in one of several hundred service bulletins made available to me by @ray benson.

I love the service bulletins some great nuggets of information.  I wish they were availble all in ones spot for various models.
Title: Re: Husqvarna 351
Post by: Cut4fun . on March 08, 2018, 09:18:42 am
Thread I was looking for to read up.  Buying a 351 and had to buy a 350 too.

Title: Re: Husqvarna 351
Post by: wild262 on March 08, 2018, 01:22:02 pm
       That 44mm motor runs darn good and will impress you when you do a gasket delete and muffler mod.  Try it sometime.  Sure like mine.
Title: Re: Husqvarna 351
Post by: Cut4fun . on March 09, 2018, 09:58:18 am
Back from the morning run picking up a 351 and 350. 351 he said dont start and thinks just fuel line. 350 runs and cuts good he said.
Few bumps, bruises and missing parts. Like cover clip bar nut and muffler bolt. Just hope the muffler bolt missing on 351 didnt take out the cylinder threads on the way out.

Title: Re: Husqvarna 351
Post by: concretegrazer on March 09, 2018, 12:49:01 pm
Hopefully it just fell out. My recently acquired 2149 has impressed me the few times I've run it. Need to get the intake clamp swapped out & run it some more.
Title: Husqvarna 351 and 350
Post by: Cut4fun . on March 18, 2018, 04:41:47 pm
Another taken a chance pays off. Bought the 350 and 351 without even checking over. Was told the 350 ran but the 351 didnt. Both run now.
Also used the 346 muffler bracket after cutting case leg off for 350 muffler support.
Then looking at 351 muffler support bracket. I'd never seen that one before.
Both need the metal intake clamp update. Can see where the boot slides on the cylinder area on 350.
350 45mm plastic cased and 351 44mm mag cased.

Title: Re: Husqvarna 351 and 350
Post by: Cut4fun . on March 18, 2018, 05:09:50 pm
 Oh yeah past owner bought a new air filter for the 350. The twist on style. Total fail. They fit loose as heck and will allow crap through that area. Pulled the oem one off 351 and tried both back and forth and it is the loose fit of afm.
Title: Re: Husqvarna 351
Post by: Cut4fun . on March 18, 2018, 06:06:16 pm
Got lucky not stripped out and had 4 aftermarket bolts on hand for the 351.

Also cut the leg off the 346 muffler bracket for 350 muffler.
Title: Re: Husqvarna 351
Post by: Cut4fun . on March 20, 2018, 10:42:56 am
Since I didnt have to pull the 351 44mm cylinder. Is this what it looks like inside, same as jonsered 2149?



Title: Re: Husqvarna 351
Post by: concretegrazer on March 20, 2018, 02:40:29 pm
Since I didnt have to pull the 351 44mm cylinder. Is this what it looks like inside, same as jonsered 2149?


Yes
Title: Re: Husqvarna 351
Post by: wild262 on March 21, 2018, 08:16:23 am
Another taken a chance pays off. Bought the 350 and 351 without even checking over. Was told the 350 ran but the 351 didnt. Both run now.
Also used the 346 muffler bracket after cutting case leg off for 350 muffler support.
Then looking at 351 muffler support bracket. I'd never seen that one before.
Both need the metal intake clamp update. Can see where the boot slides on the cylinder area on 350.
350 45mm plastic cased and 351 44mm mag cased.


That 351 muffler support is the same one they used on the 346OE at the time.  That 44mm open port comes alive real well with a gasket delete and muff/mod. I like 'em.
Title: Re: Husqvarna 351
Post by: Cut4fun . on March 21, 2018, 10:08:30 am
Another taken a chance pays off. Bought the 350 and 351 without even checking over. Was told the 350 ran but the 351 didnt. Both run now.
Also used the 346 muffler bracket after cutting case leg off for 350 muffler support.
Then looking at 351 muffler support bracket. I'd never seen that one before.
Both need the metal intake clamp update. Can see where the boot slides on the cylinder area on 350.
350 45mm plastic cased and 351 44mm mag cased.


That 351 muffler support is the same one they used on the 346OE at the time.  That 44mm open port comes alive real well with a gasket delete and muff/mod. I like 'em.

None of my OE 346's had that muffler bracket. Just saying.



Title: Re: Husqvarna 351
Post by: wild262 on March 21, 2018, 10:41:44 am
                Some of the early 346s and 353s -did.  Since they all shared the same case as the 351, it stands to reason.  Or, likely due to the parts Husky had on hand, or just before the new 2-leg design.  Not that it matters a hell of a lot, but I've had a few and I think I still have 1or 2 in my pile out back. 
Title: Re: Husqvarna 351
Post by: Cut4fun . on March 21, 2018, 10:47:30 am
Good to know though. First one I remember seeing come through my place so far.  Thanks