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TD 049 crankshaft endplay ?
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TD 049 crankshaft endplay ?
I have a TD with a bit more front/back play than my others. I uninstalled and reinstalled the crank, no change. I assume something has worn from use. Would this be crankcase wear, or crankshaft wear?
mattp51- Moderate Poster
- Posts : 15
Join date : 2014-02-24
Re: TD 049 crankshaft endplay ?
Most likely wear in the crankcase which is made of soft aluminum whereas the crank is hard steel.
706jim- Gold Member
- Posts : 456
Join date : 2013-11-29
Re: TD 049 crankshaft endplay ?
One would think it is crankcase wear. Most likely from using an electric starter on the engine. It could also be the thrust plate, or back cover, for the same reason.
Dirty bushing bearings do a funny thing, the bearing tends to not _wear_, but instead embed the dirt, making the bearing abrasive and wearing the shaft. This means the shaft should be checked.
thrust washers can be added
http://coxengines.ca/cox-.049-thrust-washer-steel-3.html
Phil
Dirty bushing bearings do a funny thing, the bearing tends to not _wear_, but instead embed the dirt, making the bearing abrasive and wearing the shaft. This means the shaft should be checked.
thrust washers can be added
http://coxengines.ca/cox-.049-thrust-washer-steel-3.html
Phil
pkrankow- Top Poster
- Posts : 3025
Join date : 2012-10-02
Location : Ohio
Re: TD 049 crankshaft endplay ?
Yes a phenolic or steel thrust washer will stop the play and help retain oil to some degree.
1/2A Nut- Top Poster
- Posts : 3402
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: TD 049 crankshaft endplay ?
Yup like everyone else has said, sounds like excessive use with a starter, the TD .049 came stock with a thrust washer but it's possible the drive plate was once removed and the washer wasn't reinstalled. As Phil stated, go to Cox International and grab a couple of their thrust washers. Also I would tear it down and inspect the crankshaft for wear especially near the front and around the rotory valve.
(Bandit)
(Bandit)
TDbandit- Platinum Member
- Posts : 897
Join date : 2014-12-01
Age : 52
Location : Riverdale Georgia
Re: TD 049 crankshaft endplay ?
Just to be contrary I would not be so fast to claim e starter wore the crank case nose short.......may be it did but:
I have built a whole slew of TeeDees from parts, and can attest COX has long and short cranks and long and short Crank cases
the difference is subtle but there are cranks too small to turn drag free in some cases and some with a lot of slop fore and aft
And I also believe the OP could use as is with no thrust washer as it is NOT really a thrust washer...the prop pulls the crank forward in tractor use.... for pusher, yes, one is needed ----or for any thought of electric finger a thrust washer and shot of oil is needed
I have built a whole slew of TeeDees from parts, and can attest COX has long and short cranks and long and short Crank cases
the difference is subtle but there are cranks too small to turn drag free in some cases and some with a lot of slop fore and aft
And I also believe the OP could use as is with no thrust washer as it is NOT really a thrust washer...the prop pulls the crank forward in tractor use.... for pusher, yes, one is needed ----or for any thought of electric finger a thrust washer and shot of oil is needed
fredvon4- Top Poster
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Posts : 4000
Join date : 2011-08-26
Age : 68
Location : Lampasas Texas
Re: TD 049 crankshaft endplay ?
fredvon4 wrote:Just to be contrary I would not be so fast to claim e starter wore the crank case nose short.......may be it did but:
I have built a whole slew of TeeDees from parts, and can attest COX has long and short cranks and long and short Crank cases
the difference is subtle but there are cranks too small to turn drag free in some cases and some with a lot of slop fore and aft
And I also believe the OP could use as is with no thrust washer as it is NOT really a thrust washer...the prop pulls the crank forward in tractor use.... for pusher, yes, one is needed ----or for any thought of electric finger a thrust washer and shot of oil is needed
Yes, I will also agree that there is enough statistical differences between the crank and case over years of production that it could be simply the combination of parts.
Phil
pkrankow- Top Poster
- Posts : 3025
Join date : 2012-10-02
Location : Ohio
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