Yes. The head is aluminum. We don't want a steel spring wearing on it, so there's a steel washer between the head and the spring.
Can't really tell until you wipe the oil off, but those rockers look to be brinneled pretty bad.... shot.
-
Enjoy XS650.com? Consider making a donation to help support the site.
XS650.com receives a small share of sales from some links on this page, but direct donations have a much greater impact on keeping this site going.
Valve seat cutters? Doing it myself?
- Thread starter Flash1977
- Start date
Can't really tell until you wipe the oil off, but those rockers look to be brinneled pretty bad.... shot.
Just for fun
https://www.facebook.com/share/v/1RENsunqQt/
https://www.facebook.com/share/v/1RENsunqQt/
pix 3177 is where we want to measure tip to.
outside of guide/spring seat, right on aluminum head.
NOT on spring seat, ON spring pocket.
I did.thats the larger number. I just also measured to the guide in case it was needed.
Are the lash adjusters the tappet screws and if so I can I just change those apose to buying rocker arm . And if so should use OEM stock or go with elephant shoes that I saw on a post in xs650? Or can I just polish up the ones I have
Yeas adjusters are the tappet screws, yes replace since 1)damaged 2)they would hold setting.
These stockers got you so far, stick with 'em.
Now for the crux. We need to measure guide wear.
Get the right equipment, or use the valve in the guide.
Just off seating, rock valve forward/back and measure valve rock.
I can use a dial indicator can't I?
Im at work but I'll check when I get home
For rocking, yes. It's just to see how bad the guides are.
Yeah these call-outs look correct
Attachments
I believe each little line is thousandths.
??? must be some really good stuff!
I used the harbor freight o to 1" dial indicator. It says on the box that each line is thousandths. What should it be?
I do have new valves and guides on the way but I'd like to turn these valves anyways so that when I do the other motor I will have the tools and some knowledge.
4 to 6 thousands rock, with the valves just off the seat by 10 or so thou. is bad.
Try all 4 valves in respective holes.
Try to imagine valve coming down on the seat cocked. The valve will find it's way "home" while scrubbing the seat.
600 times per minute at idle.
Giggles, you can clean up what you have and dump some gas or kero in the chamber to see how bad it leaks.
So ... Star grinding the valve seats then ? Install new guides and valves. Then Lap the the new valves to the seats and polish the tappers and put it back together?
