Concours Owners Group (COG) Forum

Concours 14 Discussion (C14 / ZG1400 / 1400GTR) => Concours 14 / ZG1400 General Chat and Tech => Topic started by: IBAJIM on February 25, 2019, 01:55:13 pm

Title: Valve Clearance Check & Adjust
Post by: IBAJIM on February 25, 2019, 01:55:13 pm
I bought my 2008 C-14 last year with 15K miles on it.  It was a trade-in bike.

I had several hours to kill over the weekend, so I watched Fred Harmon's video on how to do a valve clearance check & adjustment.   I think I now know why the PO traded this bike in at 15K miles, especially if he isn't mechanically inclined.

Doing the actual valve clearance check & adjustment is straight forward, once you get in there, but replacing all the air dams, fairing stays, and engine braces, etc. IMHO is the most challenging parts of the job.

I plan on taking several pics during the job this spring.

The only other thing I would add to Fred's procedure is to put a drop of oil on the valve stem before replacing the shims and another drop of oil on the top of the shim before dropping in the bucket.

BTW, doing the valve clearance check & adjustment on my old ST1100 is a piece-of-cake with the V-4 engine.  I have checked the clearances three times since I purchased the ST1100 with 45K miles on it and all three times all the clearances were dead-nuts in the middle of the range.

Maybe I should have bought a ST1300 instead of the Concours, but I needed a bike to keep up with my riding buddies K1600GT.  I have already had Steve's re-flash done to be sure of that.
Title: Re: Valve Clearance Check & Adjust
Post by: 4Bikes on February 26, 2019, 12:44:01 am
Good job, and I agree the actual valve work is fun compared to getting everything stripped down and buttoned up again. Obviously you had the cams out and they needed attention.  How many valves were out of spec and how many shims did you swap/replace?
Title: Re: Valve Clearance Check & Adjust
Post by: IBAJIM on February 26, 2019, 02:16:24 am
I'm getting ready to do the job in April.  Need to order some gaskets and then shims after I do all the measurements and measure the existing shims.  Hopefully, I'll be able to shift around some shims and will only need to order a hand full of new shims.

I'll report back what I find in April.

EDIT:   BTW, it looks like I'll buy Wiseco 9.48 mm diameter shims from Summit Racing.

https://www.summitracing.com/search?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=Wiseco%20shims&N=4294786865 (https://www.summitracing.com/search?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=Wiseco%20shims&N=4294786865)
Title: Re: Valve Clearance Check & Adjust
Post by: MAN OF BLUES on February 26, 2019, 04:37:25 am
I'm getting ready to do the job in April.  Need to order some gaskets and then shims after I do all the measurements and measure the existing shims.  Hopefully, I'll be able to shift around some shims and will only need to order a hand full of new shims.

I'll report back what I find in April.

don't forget to measure, and record the "head" thickness' of the individual cam follower "buckets" they very in thickness, and by recording these measurements (using a micrometer, real micrometers with a 1" range, and meaurable to 4 places like .xxxx"), they can also be moved around, to accommodate, and simplify the shim processes.. to a very great extent... to get all the clearances "happy" at the max end of the spec. No matter what anyone chimes in with about the FSM saying about 'segregating' the individual parts a pulled out, that is ONLY to prevent mixing up the shims, and buckets when removed.. after readings are done, and recorded.. feel free to wap buckets to suit...( or "followers" for the ethnically correct people.that insist on fighting this)

best of luck,
Title: Re: Valve Clearance Check & Adjust
Post by: IBAJIM on February 26, 2019, 12:41:01 pm
I plan on keeping all the buckets in the original positions. 

And I would also rather be a little on the loose side, instead of the tight side, within the allowable range.