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Valve Grinding Compound

Valve Grinding Compound

Your Price: $10.00
In Stock
CMC Part Number:9056
  • Qty:Sold in Pairs

Optional Add-On: Prussian Blue
#9055 [+$9.00]

Part: Coarse and Fine Valve Grinding Compound

Why You Need This: Valve Grinding Compound, also called Valve Lapping Compound, is used to lightly sand the contact surfaces of your either new or within service limit valves against the valve seats to get a perfect seal before reassembling your head on your Honda CB350 / CB360 / CB450 / CB550 engine. Whether you choose to replace your valves with our new CB350 / CB360 valves, CB450 valves or your original ones were still looking great, every one is going to need to be lapped and measured to insure your valves are going to seat and wear in properly your freshly rebuilt head. Since it is impossible to see how well a valve and seat fit together after years of wear make sure to pick up some Prussian Blue to check the consistency of the face contact the two parts make. This is done pre-lapping to determine the initial state of the parts and post-lapping to see if the lapping process was successful.

Sold as two .75 fl oz tubes, one coarse and one fine grade. One set will do several valve jobs.

Installation Tip: If you are replacing your engine valves then they must be lapped to the old seats in the head. Apply a thin coat to the valve face and press it into the seat. Attach a short piece of fuel line to the end of the valve and an electric drill. Spin the drill at a low speed while lightly pressing in the center of the valve face. This will give you a more consistent and even lap than a valve lapping tool. Remove the valve and wipe both the valve face and seat clean of valve grinding compound then apply a thin even coat of Prussian Blue to the valve face and press into head to see the progress. Thin, spotty or incomplete contact means the valve seats will need additional lapping or cutting to bring back them back to true. Take this process slowly and check your progress often. If you are close switch to the fine grit compound.

NOTE: Check your valve guides to determine if they are within service limit before hand. If they are not replace them.

This Valve Grinding Compound Is Used On These Honda Motorcycles
19651966196719681969197019711972197319741975197619771978
450
500T
CB450K0CB450K0CB450K0CB450K1CB450K2CB450K3CB450K4CB450K5CB450K6CB450K7CB500TCB500T
CL450K0CL450K1CL450K2CL450K3CL450K4CL450K5CL450K5CL450K6
350CB350K0CB350K1CB350K2CB350K3CB350K4CB350K5
CL350K0CL350K1CL350K2CL350K3CL350K4CL350K5
SL350K0SL350K0SL350K1SL350K2SL350K2
360CB360GCB360TCB360T
CL360K0CL360K1CJ360TCJ360T
500F
550
CB500K0CB500K1CB500K2CB550K0CB550K1CB550KCB550KCB550K
CB550FCB550FCB550F

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