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Discussion in 'Trials' started by Greebe, Nov 1, 2018.
Does the enamel hold up on fasteners even at higher torque requirements like head bolts/studs?
They worked for me and thanks.
Years ago I purchased one of those hot coat guns from Eastwood. I drill holes in copper flashing,drop them in and powder coat them.works great on Allen heads but tends to chip on nuts and bolts.If I am working on other people's bikes will clean and coat with antisieze. Unreal how well that stuff stops corrosion. I always wanted to try cadmium coating but never seem to find the time.
Ok, for us in the back of the room...
Denso W16FPR-U = NGK BPR5HS
Is that correct?
From what I have read the Denso “F” and NGK “H” designate 1/2” (12.7mm) reach.
The Denso “16” and NGK “5” are heat range but I don’t know if they’re similar.
The P and R on both plugs mean projected electrode and resistor (insulated).
The Denso “U” indicates it’s their standard (not fancy) plug and I assume the NGK “S” means the same.
I don’t know what the Denso “W” or NGK “B” means.
fwiw the Denso W16FPR-U came with my 2018 Factory Sherco 250.
To answer my own question. I found this heat range chart on NGK’s site.
Not sure the longer 3/4” (19mm) plug will fit even though the manual and 3 dealers say it will. Central Kentucky Motorsports even looked it up on the parts fiche and it said use longer plug.
This is the 1/2” (12.7mm) plug next to my certified McDonald’s straw showing how much room I have to the piston at TDC.
Assuming the 3/4” (19mm) plug is actually 22.56mm counting the electrode that only leaves 4.24mm (a little over 1/8”) between the plug and piston.
I’m no engine builder but I think I’ll stick with the 1/2” plug unless someone can convince me otherwise. 1/8” seems pretty close.