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What we do is get a large sharpening stone (like the width of the block) and put some oil on it and lightly go the length of the block back and forth. This will take out most light scratches.
I do this regularly where I work. I happen to build/repair Honda engines everyday at the Engine plant in Ontario Canada.
What we do is get a large sharpening stone (like the width of the block) and put some oil on it and lightly go the length of the block back and forth. This will take out most light scratches.
I do this regularly where I work. I happen to build/repair Honda engines everyday at the Engine plant in Ontario Canada.
where are these damaged engines coming from? Lucky guy sounds like a noble job
You ran a straight edge on the block surface & all is within tolerance? If within tolerance, I'd use the lightest stone to smooth the surface scratches, if at all.
Thanks for all the input. When I say I'm getting the block honed, I'm just asking for a simple light deglazing to seat the rings. No more.
As for decking the block, the shop is quoting $60CAD to give it a skim. I'd rather go that route vs risking creating any low spots with a sanding block/whetstone. Besides, by the time I spend the money on a whetstone the width of the block and count my time spent smoothing the deck, it'd be hard to argue against a properly setup machining center giving me the best flatness.
The shop is well known locally for rebuilding F20/22c engines so they do know what they're doing and have the proper stones for deglazing.
Since the block is out of the car and I won't want to redo this job, I just want it done properly.
As for milling limits of block/head: Not uncommon to see engine builders like J's Racing cut a full 1mm/0.040 off their cyl heads and lathe pistons to get the compression ratio they want. Of course this is asinine for a strictly OEM build, but for a custom build, one can always use timing correction gears to retime the engine. It is important to give context to whatever mod is being done.... all good info
As for milling limits of block/head: Not uncommon to see engine builders like J's Racing cut a full 1mm/0.040 off their cyl heads and lathe pistons to get the compression ratio they want. Of course this is asinine for a strictly OEM build, but for a custom build, one can always use timing correction gears to retime the engine. It is important to give context to whatever mod is being done.... all good info
That's a very fair point. I have added the shop to the list (Gord Bush Performance in Toronto Canada - GBP - About )
where are these damaged engines coming from? Lucky guy sounds like a noble job
As with any mass production things happen people make mistakes etc. bear in mind engines are assembled in a factory with quality, efficiency, and speed being primary factors. Occasionally machining errors make it to assembly.
I generally run a stone on the block and head GA (gasket area) just to highlight any imperfections any time I remove the head.
I don’t know if I’d call it noble lol. Although I do occasionally say my job is fixing broken dreams since Honda’s slogan is the power of dreams lol.
Just an update for anyone interested, Gord Bush Performance skimmed the block, only needed to take 0.002" off the top, guaranteed flat with a good gasket surface now. The honing process results also look fantastic. Waiting on parts now to begin blueprinting before reassembly.
Doesn't mean its going to work well? Well my headgasket seals.... I've got plenty of experience to back up my claim. My current block has been decked .010" and the head has been decked .025"...neither are down to the visual guide. Since you like to give all this "advice" lets hear what numbers you've decked them down to....I'll wait.
Did you use a thicker head gasket or aftermarket chain tensioner to compensate for the material removed?
