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O.A.H.
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Well, I will be taking my engine apart, to clean the slingers. What do I need to know? What do I need to replace? What should I check?

Twocams
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Check the crank and cam

Check the crank and cam bearings. Make sure to check the rear crank bearing holder to see if it has moved in the holder.
Check the front cam bearing holder also. Get a torch and hot plate. All in one tool kit you will need it. Heat the rear cam bearing pocket on the block or the cam bearing may come off the cam shaft. Then you will need a blind hole puller to get bearing out. I would replace the push rod tube rubbers, any bearings or piston rings if any thing is iffy. Make sure the flywheel is going on straight I used a dial gauge. Torque the flywheel bolt good. Check besides book they say as much as 175 ft. LBs. torque ( im thinkin)?
There is lots more but......

Twocams

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69 R69S 03 K1200GT
92 R100RT

mcsherry1328
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Madison, WI
Joined: 10/27/2006
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R69S Slingers

OAH, There are many opinions out there on slinger cleaning as what to replace or not. I recently finished doing the slingers on two R69S engines I have. Having never done it before I was feeling very daunted to try it. So my engines sat on a bench for a year or two.
One thing that helped me a lot was Ed Korn's video which they sell at Cycle Works in Kansas. The Many in one tool is a must have and they sell that to. The Barrington Manual is very nice and answers a lot of questions. In some ways for me it could get too involved with critical measurements and ultra detailed specifics that I found intimidating and unnecessary .
I know they say a picture is worth a thousand words and so if you'd like to see the pictures I took of my slinger cleaning and restoration of R69S I have it on a Google drive you can view on the web without downloading all the images.
After having done it myself I feel it was not too big a job for someone at home in there garage. If you'd like the Google drive let me know.
Michael

Slash2
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Curious

I'm curious what has given you cause to perform this service?

It seems that many owners come to it from different directions and while I won't argue that it's a bad idea to perform a rebuild for the health of your motor, I would hazard a guess that many a slinger has been cleaned or replaced in recent years without urgent need.

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64' R60/2 - 66' R27 - 51' R67 - 68' R69S
88' R100RS - 06' K12R

312Icarus
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The reason (IMHO) to do

The reason (IMHO) to do slinger service is at a certain mileage, or if you have an unknown history of the engine. In point of fact, it is much cheaper to clean the slingers (and inspect the bottom end for wear, replacing mains and cam bearings as needed) than it is to wreck a very expensive crank.

Icarus

miller6997
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As they say, it depends...

I bought my first R69S new in '67 and rode it over 100,000 miles before I sold it in '77. As I said the last time this topic came up, the slingers were never done while I owned it. The slingers in my present '67 R69S were done for the first time at 52,000. They were maybe half full of impacted debris at that point. The key is that both of these were one-owner bikes with faithful maintenance and 1000-mile oil changes. If I had a bike with unknown maintenance history, I would do the slingers before I put any serious miles on it. As Vech pointed out to me in his delicate way, you need to weigh the cost of the slinger service against the likely cost of a complete overhaul, including (very likely) a new crankshaft.

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Jon Miller
'67 R69S
'13 F800GT

Twocams
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And there are more and

And there are more and different kinds of oils on the market. I would measure the oil pump while apart. Replace the crank and cam seal, get zip lock bags (lots), felt pen. Check the wood ruff key in the rear crank used to align the fly wheel not to hold it in place. Mine was broken off and flywheel had moved. Possible flywheel bolt was not tight enough? (is now). if you still have front crank dampener maybe a good time to decide if you want to keep it in tacked. I took mine off, to many horror stories of coming apart. And thats another problem not a lot of these bikes around that are one owner and the speedometer hasnt been changed or rebuilt.

twocams

  • front_damper_002.jpg
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Twocams
69 R69S 03 K1200GT
92 R100RT

mcsherry1328
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Madison, WI
Joined: 10/27/2006
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R69S Slingers

To follow up on my earlier reply I wanted to let you know that I had no idea of mileage on one engine at all. On the complete and running bike I bought showed 31,000 miles on the odometer and I feel it was accurate . Both engines had full slingers, so for me it was a good call.

O.A.H.
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Okay thank you all for your

Okay thank you all for your responses. I'd love more information on the crank damper delete. This is a one owner bike with 41,000 kilometers on it.

O.A.H.
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Yea i would appreciate that.

Yea i would appreciate that. My email is Trailsnibpipop777@gmail.com

O.A.H.
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Also does anyone have

Also does anyone have pictures of the many in one tool kit?

schrader7032
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San Antonio, TX
Joined: 10/27/2006
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FWIW, picture
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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

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