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Post by haitch on Mar 4, 2022 18:56:30 GMT 10
Noteing bewildered's issue with the doubtful "dowty" washer. I was very careful in removing the right side cover. There was lots of rubber debris, which I think was cut from the rubber during the initial install. None had passed into the rocker chamber. I saw no need to replace any of the washers. Checked the head bolt torque (50nm) on the right side picked up a smidge more on both lower nuts. On the left just one gave a smidge more. This may be just due to torque wrench variability. Valve lash was very close to spec. I set the right at a sliding 0.005 for both Inlet and exhaust.
The left was a little more trouble as the inlet was a smidge tight for me, dragging the .004 guage heavily. Backed it off to a firm .005. Refitted some new cork gaskets as I had them, and tensioned to 12nm.I also noted that in my opinion, the spark plugs had been over tightened. I could not undo either side with the provided plug spanner. They were re fitted after the valve adjustment and tensioned to 21ftlb. No leaks on start up and none evident when hot.I have what may be some unbalance in the throttle bodies. Check tomorrow.
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bewildered
Tool for reverse shift lever removal
Posts: 276
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Post by bewildered on Mar 4, 2022 20:04:16 GMT 10
Cheers Harry, good report.
My spectacular near 60 MPG has decreased since I began going a bit quicker.
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Post by haitch on Mar 5, 2022 7:23:51 GMT 10
Spark plug torque should be 18 to 21.7 foot lb For alloy heads with flat compression washer engagement. Not NM as was published originally, but now edited. I also spoke of "doubtful dowty" washers. Here are some pics of the bits and a pic of spark plug colouration, Interestingly, the dowty bits were all from the right side. Next to nothing from the left valve cover bolts. For information. The dimensions off the screws in the area the dowtys engage is 7.85mm or 0.3085" diameter, Dowty washer dimentions are, OD is 17.36mm or 0.6825". Thickness is 1.53mm or 0.060". Rubber ID to suit the screw neck.   |
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Post by Uralee on Mar 6, 2022 18:20:10 GMT 10
You can forget plug colour…won’t tell you anything other than what additives are in the fuel. Blistering or flaking is another story.
Why have you set the valve clearances wide? They open with heat and spec is 0.1mm (.004” if you are older than me). Not sure on the euro 5 engine but all previous have run smoother at minimum spec.
Just sayin’ 😇
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Post by Wheels on Mar 6, 2022 18:58:45 GMT 10
You can forget plug colour…won’t tell you anything other than what additives are in the fuel. Blistering or flaking is another story. Why have you set the valve clearances wide? They open with heat and spec is 0.1mm (.004” if you are older than me). Not sure on the euro 5 engine but all previous have run smoother at minimum spec. Just sayin’ 😇 The valves rattle bad enough as it is when the engine gets hot. Can’t imagine what they sound like when set loose.😎 |
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Post by haitch on Mar 6, 2022 19:30:39 GMT 10
You can forget plug colour…won’t tell you anything other than what additives are in the fuel. Blistering or flaking is another story. Why have you set the valve clearances wide? They open with heat and spec is 0.1mm (.004” if you are older than me). Not sure on the euro 5 engine but all previous have run smoother at minimum spec. Just sayin’ 😇 2022 spec per manual is .004" inlet and .006" exhaust.Taking .005" on both in and ex makes the inlet a smidge loose and the exhaust a smidge tight. There are also posts from others to set both exhaust and inlet to 0.005". I'd rather hear them rattle a bit, than be too tight. |
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Post by Wheels on Mar 6, 2022 20:14:30 GMT 10
You can forget plug colour…won’t tell you anything other than what additives are in the fuel. Blistering or flaking is another story. Why have you set the valve clearances wide? They open with heat and spec is 0.1mm (.004” if you are older than me). Not sure on the euro 5 engine but all previous have run smoother at minimum spec. Just sayin’ 😇 2022 spec per manual is .004" inlet and .006" exhaust.Taking .005" on both in and ex makes the inlet a smidge loose and the exhaust a smidge tight. There are also posts from others to set both exhaust and inlet to 0.005". I'd rather hear them rattle a bit, than be too tight. That your going to!….enjoy the god awful clatter when she gets hot!….1 thou makes a difference! 😎 |
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andyh
2015 Tourist
Posts: 950
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Post by andyh on Mar 7, 2022 4:02:29 GMT 10
...There are also posts from others to set both exhaust and inlet to 0.005". I'd rather hear them rattle a bit, than be too tight. Your bike your choice, but while it is under warranty I would be following the factory guidelines and not some random post on the internet - far too many of them as it is and not all of them are right. |
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Post by Uralee on Mar 8, 2022 15:36:48 GMT 10
Oh damn, another spec change for the 22. 👀🤣🤣
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Post by haitch on Mar 8, 2022 18:02:10 GMT 10
YEP.
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