Valve adjustment questions - Wrist Twisters
 
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post #1 of 25 Old 09-06-2007, 05:55 AM Thread Starter
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Valve adjustment questions

After taking a peak of the manual online part of the procedure seems fuzzy.

My first concern is with the cam timing. I know it's very important to get the cam sprocket in the right position but I'm unsure how to line it up exactly. I saw the marks on the sprockets but I didn't see any marks on the motor itself to line them up with. (I haven't looked at my real motor yet) Are there any marks like that? What happens if I'm off by one or two teeth?

Secondly, how do I get the cam tension back to spec? I read the part about the lil key thing you have to make, but once it's back on the motor how do you adjust it to spec?

Thanks in advance.

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post #2 of 25 Old 09-06-2007, 08:17 AM
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The timing marks on the cam gears line up with the top of the head where the valve cover sits. The gears are coarse enough that if you're off one tooth, it'll be obvious you're off.

Take some time rolling over the engine before taking the cam out (if you need to take the cam out) in order to familiarize yourself with the marks.

Also, pay attention to the marks on the crankshaft that are revealed after removing the circular cover at the crank end on the cam side of the engine.

Cam chain tension is maintained by the spring tensioner you manipulate with the "key". Once things are back in place, un-wind the "key" and spring pressure takes care of the rest.

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post #3 of 25 Old 09-06-2007, 02:24 PM
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Valve

Any time I disturb an OHC, I'll turn it over by hand about 2-3 times to make sure the marks are still right before I fire it up.

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post #4 of 25 Old 09-08-2007, 02:04 PM Thread Starter
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Thanks for the tips guys.

Does anyone know of a good torque wrench? I've tried several different stores and the small ones always have 10ft/lbs on the short end. Some bolts call for as little as 7.

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post #5 of 25 Old 09-08-2007, 03:10 PM
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Quote:
Originally Posted by Super Sneaky Steve View Post
Thanks for the tips guys.

Does anyone know of a good torque wrench? I've tried several different stores and the small ones always have 10ft/lbs on the short end. Some bolts call for as little as 7.

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post #6 of 25 Old 09-08-2007, 03:29 PM Thread Starter
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Sears was the first place I went. I just wanted a cheap one, but I guess I"ll have to spend at least $200 on an electronic one to get the range.

I also failed in making a little cam tention key out of an Altoids box. Thank God I didn't cut my finger off! It's simply too flimsy.

Can anyone make one for me? I can post the dimentions.

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post #7 of 25 Old 09-08-2007, 04:20 PM
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Quote:
Originally Posted by Super Sneaky Steve View Post
Sears was the first place I went. I just wanted a cheap one, but I guess I"ll have to spend at least $200 on an electronic one to get the range.

I also failed in making a little cam tention key out of an Altoids box. Thank God I didn't cut my finger off! It's simply too flimsy.

Can anyone make one for me? I can post the dimentions.
Don't spend the money on an electronic one. Get a regular foot/pounds one and also an inch/pounds wrench. inch pounds wrench

The inch pounds version is good for 25 to 250 inch/pounds which is about 2 to 20 foot/pounds. Just multiply the foot/pound value by 12 to get inch pounds, so 7 foot/pounds would be 84 inch/pounds.

As for the key; I tried to make one out of various materials as well, and all were too flimsy. I used a piece of heavy metal banding. Go to Home Depot or Lowes and see if they have any laying around where they keep the wood bundles.

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post #8 of 25 Old 09-08-2007, 06:43 PM
 
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I am curious how many miles you have on the bike?

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post #9 of 25 Old 09-08-2007, 11:31 PM Thread Starter
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I only have 6,500 miles, but I skipped the first check at 500 miles. I know I don't have to do it, but this Honda is so reliable I'm just hunting for things to do on it.

Thanks much for the wrench. They didn't have it at the store so I'll order it by the part number.

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post #10 of 25 Old 09-09-2007, 05:40 AM
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PM coming on the key - I have one and no longer have any need for it.

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post #11 of 25 Old 09-09-2007, 01:34 PM
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I bet your getting worried about nothing. Check the valves. I doubt they are out of adjustment. Of coarse, being prepared to have to take cams out is not a bad thing.

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post #12 of 25 Old 09-09-2007, 06:35 PM
 
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I had mine checked by a shop at 15k (or 17k or whatever the manual specified) and the technician said the top end looked brand new. Everything was in spec and no adjustment was necessary.

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post #13 of 25 Old 09-09-2007, 10:56 PM
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Valve clearance Inspection is to be at 16k per the manual.
He's got time.

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post #14 of 25 Old 09-10-2007, 10:16 AM Thread Starter
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All the reviews I read for the sears wrench said it was crap.

Has anyone used this wrench?
http://www.harborfreight.com/cpi/cta...temnumber=2696

From the price it doesn't seem to be high quality, but the fact that it cost half as much would be better if it took a crap. The Craftsman is only warrentied for a year.

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post #15 of 25 Old 09-10-2007, 11:06 AM
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Quote:
Originally Posted by Super Sneaky Steve View Post
All the reviews I read for the sears wrench said it was crap.

Has anyone used this wrench?
http://www.harborfreight.com/cpi/cta...temnumber=2696

From the price it doesn't seem to be high quality, but the fact that it cost half as much would be better if it took a crap. The Craftsman is only warrentied for a year.
I have the harbor freight wrench. It works fine, although I don't have anything to compare it against. What you DON'T want to do is use it for a torque value at the bottom or top of the range because they're inaccurate for the most part unless you're somewhere in the middle. I've snapped a bolt off because I was using the wrench at the bottom of its range.

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post #16 of 25 Old 09-10-2007, 03:45 PM Thread Starter
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I caved and got this.
http://buy1.snapon.com/catalog/item....re&dir=catalog

And this to measure the lobes and shims.
http://buy1.snapon.com/catalog/item....re&dir=catalog

So last question (maybe) Should I reuse the old valve cover gasket? and should I use some kind of sealant with it?

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post #17 of 25 Old 09-10-2007, 05:21 PM
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Electric Tourque wrenches

I've heard that the electric wrenches have problems... no more details than that, but at the price they want for them i wouldn't even consider one. I have the ft\lbs and inch\lbs craftsman, lifetime guarantee is hard to beat.

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post #18 of 25 Old 09-10-2007, 05:27 PM
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Quote:
Originally Posted by Super Sneaky Steve View Post
So last question (maybe) Should I reuse the old valve cover gasket? and should I use some kind of sealant with it?
If it were me i would replace the gasket with a new and would only use selant if it's required (in the manual). Nothing worse than going through all that work and finding the old gasket leaks once it's all back together.

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post #19 of 25 Old 09-10-2007, 06:16 PM
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Why are you getting 1/4" drive instead of 3/8" drive?
You will have more range from the 3/8" as far as sockets go.
If you need to use 1/4" drive socket you can reduce it.
Just courious...

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post #20 of 25 Old 09-11-2007, 05:13 AM Thread Starter
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I guess I screwed up on ordering. I"ll call them later and see if I can exchange it.

The Craftsman lifetime guarantee doesn't include all tools. The torque wrenches are only for a year.

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post #21 of 25 Old 09-11-2007, 08:43 AM
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Quote:
Originally Posted by streakin919 View Post
I've heard that the electric wrenches have problems... no more details than that, but at the price they want for them i wouldn't even consider one. I have the ft\lbs and inch\lbs craftsman, lifetime guarantee is hard to beat.
Electric torque wrenches require frequent calibrating. A hard process to do yourself. Usually requires sending to a metrologist which can be pricey.

Quote:
Originally Posted by xrmikey View Post
Why are you getting 1/4" drive instead of 3/8" drive?
You will have more range from the 3/8" as far as sockets go.
If you need to use 1/4" drive socket you can reduce it.
Just courious...
Adding adapters and extension can reduce the accuracy of a torque wrench by up to 15%. It is best to get the drive required for the socket you will use.

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post #22 of 25 Old 09-11-2007, 09:38 AM Thread Starter
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Damn, I just called Snap-On and switched my order to a 3/8ths drive. Oh well, not going to change it again.

What kind of sealant do you guys use on your valve cover gasket? I hear Honda Seal is good.

I bought some moly grease for the cams, but all they had was stuff for axle joints. I assume it's all the same.

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post #23 of 25 Old 09-11-2007, 11:53 AM
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Quote:
Originally Posted by wisco919 View Post
Adding adapters and extension can reduce the accuracy of a torque wrench by up to 15%. It is best to get the drive required for the socket you will use.
Thats true for what ever drive you use.
The instructions should explain that.
The larger the drive the more accurate you will be. less twist on the extensions.

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post #24 of 25 Old 09-11-2007, 06:42 PM
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Don't sweat it Steve, you got the right thing.

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post #25 of 25 Old 09-11-2007, 09:45 PM
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6500 miles , I think your ok , Ive got 14K still in spec. str8

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