I have taken the chain-oil pump off my 246 (to try to fix a slow oil leak) and am surprised to find no crank seal, nor any obvious place for one. The part list I have shows a seal (ref. 501 61 49-01) on the clutch end of the crankshaft. On the crankshaft I see only the clutch-side bearing (open on the inside, sealed on the outside); the oil pump with its plastic screw (driven by the clutch) fits against the bearing. My question: is this normal for the 246 (and for the 42 / 242XP, which should be identical)? I wouldn't have thought that the bearing alone would provide an adequate seal, and why would a seal be shown in the part list? I also have a general HVA shop manual which gives clutch-side seal installation instructions for other models, but nothing for 42/242/246. Thanks in advance for any information!
No clutch-side crank seal on HVA 246 / 42 / 242XP?
- Thread starter jmcfrance
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The seal is built into the bearing on those models.
Thank you for the info! I guess the seal shown in the IPL goes into the bearing? It looked like a standard bearing to me... And I suppose the metal-on-metal bearing-to-shaft contact makes a good enough air seal?
I certainly do appreciate those who contribute to this site, which I've been visiting for some time now!
I certainly do appreciate those who contribute to this site, which I've been visiting for some time now!
Yes,the seal goes inside the bearing.The seal is thin compared to the one we are used to.There is a small groove inside the bearing to hold it.Bearing to crank clearance is tight enough to hold air inside.
That is a special bearing in that the ball race is offset from the center to provide space for the seal and being that special, there is no generic replacement that I am aware of. It's used on all the saws in that family (238, 242, 246, 42). Fortunately the seal you need is readily available and easy to install.
SawTroll
Information Collector
Is the seal the same on both sides, since it is illustrated only on one side?
I just did both seals on my 238 and they are very different. the IPL lists the 503501501 as the flywheel side seal but this number has been superseded by 503260202.
You might try http://www.smaf-touseau.com/ , a site in France which stocks the bearing for the 246 (type the part number in the search window to see price). You can call them (I don't know if they speak English) to ask if they will ship to Poland.
High-Wall
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Any chance of finding #501594002 pto bearing for 242xp in the states?
They pop up infrequently on ebay as NOS but it has been awhile since I saw one added. Sure would be nice if there were a current part available.
