03-15-2018, 05:40 AM
Thank you for saving us money .
Succient explanation, redbirds.
Although a time consuming adjustment, when actually needed, the first link may help explain why Honda used the shim under bucket design:
https://paradiseracing.com/blog/why-shou...r-buckets/
The second link has a good comparison photo:
http://www.koracing.net/productimages/Buckets.jpg My CBX's had shim over bucket (24 !) but I never had problems because I never over revved the engines , they were quite easy to change with the right tools.
(03-15-2018, 01:16 AM)SportsterDoc_imp Wrote:(03-14-2018, 10:19 PM)redbirds_imp Wrote:(03-14-2018, 09:44 PM)jimgl3_imp Wrote: Ult, can't the shims be fished out without pulling the cams? or is that not possible with this motor?
In this motor the shims are under the "buckets" atop the valves. The cam shafts must be removed in order to access. On an engine with the shims on top they are removed easily by compressing the valve spring and pulling them with a magnet.
(03-14-2018, 08:28 PM)DaSwami_imp Wrote: OK, I have a question. People refer to these measurements as "loose" or "tight", assuming that the larger measurements mean loose and the smaller mean tight. I always assumed that meant the valve didn't open very much when tight and opened more when loose. However someone explained to me the opposite is true, what we are measuring is valve LASH, the distance between the tip of the lifter or cam lobe and the rocker arm? So that a wider gap means the valve opens LESS because the lifter/lobe has to move further before it contacts the rocker and moves the valve. A smaller gap means that the lifter/lobe contacts the rocker quicker and therefore opens the valve MORE as they move through their travel. Does this make sense?
Exactly.
Succient explanation, redbirds.
Although a time consuming adjustment, when actually needed, the first link may help explain why Honda used the shim under bucket design:
https://paradiseracing.com/blog/why-shou...r-buckets/
The second link has a good comparison photo:
http://www.koracing.net/productimages/Buckets.jpg
Succient explanation, redbirds.
Although a time consuming adjustment, when actually needed, the first link may help explain why Honda used the shim under bucket design:
https://paradiseracing.com/blog/why-shou...r-buckets/
The second link has a good comparison photo:
http://www.koracing.net/productimages/Buckets.jpg My CBX's had shim over bucket (24 !) but I never had problems because I never over revved the engines , they were quite easy to change with the right tools.