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Post by Deleted on Mar 2, 2018 0:23:36 GMT -5
I have the 150 I've been working on that I posted in another thread,but I have a new problem now.When I turn the flywheel over by hand it pumps oil ( like it should),but it's coming out the muffler.Is there a gasket or seal shot somewhere that's causing this?
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Post by onlyhomelites on Mar 2, 2018 7:53:08 GMT -5
It's possible that the diaphragm in the oil pump may be ruptured, allowing oil into the crankcase. But many of these old saws end up with an accumulation of partially evaporated mix in the crankcase. Is what's coming out of the muffler the same color as what's in the oil tank?
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Post by Deleted on Mar 2, 2018 10:55:25 GMT -5
I'm opting for the ruptured diaphtagm in the oil pump.The oil is from the oiler.There was nothing in the gas tank,it was completely dry when I got the saw 2 months ago.It must've been going bad for quite awhile because when I pulled the saw apart there had to have been at least 1/4 in.of oil/sawdust caked to the housing.How do I get the oiler assembly apart?
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Post by onlyhomelites on Mar 2, 2018 15:18:47 GMT -5
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Post by Deleted on Mar 2, 2018 20:22:47 GMT -5
I looked at B-29 & correct ,e f I'm wrong,but do I have to pull the clutch to access the oil pump assy.?
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Post by onlyhomelites on Mar 2, 2018 21:30:44 GMT -5
It may not be absolutely necessary, but it'll be a lot easier to work with if you do remove the clutch.
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Post by Deleted on Mar 3, 2018 15:30:34 GMT -5
I'd rather not remove the clutch if I don't have to.I don't have the tools to do so, & I don't know how to do it.The sawe is out of the housing now for almost a week.What comes next? I looked at the saw & couldn't find a plate with screws anywhere to take off to access the pump.
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Post by sweepleader on Mar 3, 2018 16:02:57 GMT -5
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Post by Deleted on Mar 3, 2018 17:04:03 GMT -5
I don't know how anyone can determine anything by looking at those IPL's.When I do it hurts my eyes after awhile.Maybe the glaucoma that I have is affecting me,I don't know.
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Post by Deleted on Mar 3, 2018 21:47:11 GMT -5
My son & I looked at the 150 earlier.Correct me if I'm wrong I must detach the engine from the oil tank by taking out 4 small bolts,two on top of engine & two on the underside as well.Then there are two small screws/bolts that hold on the clutch shield & they must come out as well.
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Post by sweepleader on Mar 4, 2018 7:26:10 GMT -5
That's what it looks like to me but I have never had one apart. I was hoping that someone who had would answer up. Hang in there, they will be by sooner or later.
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Post by onlyhomelites on Mar 4, 2018 9:57:02 GMT -5
It's been a few years since I've dug that deep into one of these, but you have the right idea Ed. After looking closer, I can see that you don't have to open the engine up (which makes a lot more sense!). Getting the clutch shield screws out with the clutch there might be tight, but likely doable. When the oil tank comes loose, be careful with the gasket...they're cheap and easy to come by, but usually can be reused if disassembly is gentle. The pump housing will be obvious with everything apart...just remove the two screws and you'll find the pump diaphragm underneath.
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Post by Deleted on Mar 4, 2018 16:51:09 GMT -5
I disassembled the 150 oil tank earlier.There were a couple of different factors which contributed to this saw throwing oil all over the inside of the housing (my opnion).First,the screws that hold the tank to the engine were loose on one side (left).When I put it back together I'm going to use Loctite thread locker to hold them in so they can't back out or become loose again.Second,the daphragm is shot (I believe).I think I read in the pdf that Greg posted that the inside of the diaphragm should be dry,any oilon the inside of the diaphragm is a dead giveaway that the diaphragm is no good - makes sense to me.Oh,the clutch did not need to be removed.The screws holding the clutch shield did not have to be removed as well.This has been an easy job so far.I've got some pics to show wrinkles in the diaphragm,as well as the oil on both sides.I had to clean up one side a bit so I could hold the plunger.  20180304_151713 by edju1958, on Flickr  20180304_151632 by edju1958, on Flickr  20180304_151413 by edju1958, on Flickr |
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Post by sweepleader on Mar 4, 2018 17:37:34 GMT -5
I have heard of those being salvaged when the shaft was loose and could be turned in the diaphragm by resetting the riveted mount. Anyone have experience with that?
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Post by Deleted on Mar 4, 2018 17:54:20 GMT -5
I think Leon has one for $3.99.I'm waiting to see if Ms.Joyce has one though.
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Post by Deleted on Mar 11, 2018 11:45:42 GMT -5
Update
I received some of the parts needed to get the 150 back together.Thanks Leon for the oil pump diaphragm & the coil lead wire! I reassembled the oil pump yesterday,I think it took less than 5 mins.When I compared the new diaphragm to the old diaphragm,WOW,what a difference,the old one was definitely bad.I'm hoping that tomorrow (Mon.) I'll get the thread locker & the epoxy I ordered online.Then I can begin reassembling the 150.I have a carb kit here as well,so I can rebuild the carb.I think I could probably tear this saw down in my sleep now.Lol Putting it back together & having it run is quite another story,but we'll cross that bridge when we get to it.
Usually when I get a saw,I follow this procedure:Commandment #1 - take the muffler off & inspect the piston & cylinder for any scoring & other damage.Then,check for spark,then check compression.After these 3 steps are followed,only then will I try to fire the saw by putting some fuel mix into the completely dry carb.I wasn't able to do the last step because the recoil was locked up.I had to get a new recoil pulley & install it,plus the spark plug boot was missing.I'm hoping by week's end to have the 150 back together & running.We'll see.
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Post by onlyhomelites on Mar 11, 2018 22:11:55 GMT -5
Glad the parts got there safely...I'm looking forward to hearing that this saw is back in the land of the living!
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Post by Deleted on Mar 11, 2018 22:33:25 GMT -5
I'm not one that's big on making videos,but I think that because of how involved this one is,I can make an exception.I'm really looking forward to at least hearing it pop for the first time.
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Post by Deleted on Mar 12, 2018 19:04:27 GMT -5
Well it's getting there bit by bit.I got the epoxy & the threrad locker in the mail today.I mixed up some epoxy glue& put it in the well around the coil wire,but first I put the wire in & checked to make sure I had a good reading,it actually got a little better - 7.85 ohms.Now tomorrow I can begin to assemble what I can - the oil tank back on & the coil back on.Then I'll rebuild the carb,but maybe not all in one day.I don't want to push it.Lol I should probably take pics of the poor saw all in pieces. Here it is all in pieces,I forgot to put the oil tank in there.  20180313_140334 by edju1958, on Flickr |
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