Author Topic: 371xp not running  (Read 1416 times)

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Offline 660magnum

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Re: 371xp not running
« Reply #40 on: February 15, 2014, 02:25:02 pm »
Looks like it was run until it wouldn't?

I have a couple under the bench like that. Don't know the story on them except they have galled pistons. I bought them that way.

Watch my son's FIL run a Homelite lean and then with the choke partially on until he couldn't get it to run any more. Don't know why people are that way?
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Offline KilliansRedLeo

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Re: 371xp not running
« Reply #41 on: February 15, 2014, 03:38:12 pm »
Ya think? Well it lasted 16 years, I guess that says something! It also looks to be in pretty good overall shape. I think the saw is from the Atlanta GA area so am not sure about the cold weather thing down there but if it was tuned in 90 degree weather and run in 40 degree your are absolutely correct. I am still leaning toward a badly leaking seal on the flywheel side because of something Tom said in a PM.

Quote
I tried to crank it, nothing, took the starter assembly off and tried to pull the rope, it moved a little, but was jammed.  The heat from the saw melted the end of the nylon starter rope to such a degree that it formed around what it spins on and was restricting a smooth pull. 

What do you think Jim/Roger?
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Offline 660magnum

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Re: 371xp not running
« Reply #42 on: February 15, 2014, 04:01:57 pm »
That sounds more like a 272 style starter pulley?
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Offline KilliansRedLeo

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Re: 371xp not running
« Reply #43 on: February 15, 2014, 04:22:16 pm »
I checked out the pulleys used on all versions of the 371 non-EPA, EPA, 371K and 371K EPA there are a total of three different starter pulleys used on all variations of the 371. I do know that you can use a 272 style starter on the 37x series if you change the starter pawls to the flat 272 style and use the pulley from a 272 or even the blue pulley from a 272K and it will work.

Starter pulleys used on 371 saws:

503 78 71-01 1996/03
503 85 96-01 1996/09
503 85 96-01 1997/12
503 85 96-01 1999/05
503 85 96-01 1997/12 EPA
503 85 96-01 1999/05 EPA
506 26 95-01 2003/08 371K
506 26 95-01 2003/08 371K EPA ???
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

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Offline 660magnum

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Re: 371xp not running
« Reply #44 on: February 15, 2014, 04:54:35 pm »
When you are talking about the pulley's with the stainless tube up the center, it gets to be a real mess for replacement as the length of the stainless tube varies with each model saw they are made for.

I never had any trouble with the one on my 371 but I did change it over to 372 style pawls and all white plastic pulley.
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Offline 3000 FPS

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Re: 371xp not running
« Reply #45 on: February 15, 2014, 05:52:26 pm »
Ya think? Well it lasted 16 years, I guess that says something! It also looks to be in pretty good overall shape. I think the saw is from the Atlanta GA area so am not sure about the cold weather thing down there but if it was tuned in 90 degree weather and run in 40 degree your are absolutely correct. I am still leaning toward a badly leaking seal on the flywheel side because of something Tom said in a PM.

Quote
I tried to crank it, nothing, took the starter assembly off and tried to pull the rope, it moved a little, but was jammed.  The heat from the saw melted the end of the nylon starter rope to such a degree that it formed around what it spins on and was restricting a smooth pull. 



What do you think Jim/Roger?

Was the pulley warped or discolored?     Sounds odd to me.
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Offline KilliansRedLeo

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Re: 371xp not running
« Reply #46 on: February 15, 2014, 05:58:05 pm »
Don't know Roger, he is supposed to call later in the day so I will ask and let you know, it sounds odd to me also because the flywheel would not allow heat to get directly to the starter.
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

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Offline KilliansRedLeo

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Re: 371xp not running
« Reply #47 on: February 21, 2014, 09:35:38 am »
Saw arrived for repair yesterday. I will post some pictures of the C/P later in the day. Rings welded in the grooves, very large aluminum deposits below and above the EP on the right side. There are a couple of fins broken off the cylinder right where she stuck. So, I am wondering what if anything that this had to do with it.

Clutch side seal is shot, before disassembly I tried to put pressure in the saw and could not get it to hold any pressure at all, not even a pound.

Something fell on the saw at one time or it was dropped as the clutch side of the case has a crack at the right rear of the carb box and the case ear where the travel limiter would be located is completely gone.

I will post pictures of that also. I am wondering if hearing the case to remove and replace the bearings will cause further damage to the case.
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Offline 3000 FPS

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Re: 371xp not running
« Reply #48 on: February 21, 2014, 10:15:35 am »
Saw arrived for repair yesterday. I will post some pictures of the C/P later in the day. Rings welded in the grooves, very large aluminum deposits below and above the EP on the right side. There are a couple of fins broken off the cylinder right where she stuck. So, I am wondering what if anything that this had to do with it.

Clutch side seal is shot, before disassembly I tried to put pressure in the saw and could not get it to hold and pressure at all, not even a pound.

Something fell on the saw at one time or it was dropped as the clutch side of the case has a crack at the right rear of the carb box and the case ear where the travel limiter would be located is completely gone.

I will post pictures of that also. I am wondering if hearing the case to remove and replace the bearings will cause further damage to the case.

This poor saw sounds like a mess.   Having two fins missing I am sure will contribute to the saw getting hot and add a air leak to that and you have a recipe for disaster.
PP 505, 475, 445.

Offline KilliansRedLeo

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Re: 371xp not running
« Reply #49 on: February 21, 2014, 10:29:47 am »
The bottom end bearings are not bad but after 16 years of use they should be replaced, it is going to get a new AM C/P so the missing fins problem will get taken care of. The pictures were taken with my new SnakeScope clone from Harbor Freight so may not be the best as the thing is difficult to use but not a bad deal reg $249 on sale for $199 and a 25% off coupon gets it for $150. .3 inch head (goes right down the plug hole) and also will go through the EP or IP and out the other side with adjustable light, pan and zoom. I have not tried but it may even fit beneath the piston at TDC and allow you to look at the crank. If the pictures don't come out well I will take some more.
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826
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