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That's you, that is.
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Discussion Starter #1
So opinions please. Honed my bores at the weekend, but in the cold light of day I'm wondering if the cross hatch angle is way too shallow. I followed a video where the guy advised slowish strokes with the hone at first, only going faster towards the end, whereas all the others I've seen since just jam the thing in and out like a low budget pornstar going for the money shot.

Anyway, can I get away with this or do I need to re-hone at a faster stroke rate (or slower drill speed I guess)?


 

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I see what you mean, it is very shallow.

If it were me I would just re-do it while you have it accessible, but whether it is an actual issue I am sure CoB will soon tell you.
 

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Looks shallow to me too. I was taught 45 degrees is optimum for oil retention & ring bedding in most engines. Too steep & you'll get excessive oil migration, leading to ring & piston scuffing, too flat results in a thicker oil film the pistons can hydoplane on & you'll get high oil consumption, the exact opposite of what you're trying to achieve. Go again, but this time, faster!

Fwiw, I went through this process a month ago, honed at 45 degrees but with a noticeably lighter hatching depth than you've got there & mine is consuming no oil at all whereas prior to the work, which included extensive work on the head, seals, lapping etc. it was doing a litre a week, so just crack on, it's worth the effort. (y)
 

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That's you, that is.
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Discussion Starter #5
Yeah, I think I’ll go again. It’s not that hard work really, so long as you don’t plunge too hard the first time and dislodge the plug you wedged at the bottom of the bore, bending a oil jet and tangling the home bristles.

Not that I did that.
 

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...so long as you don’t plunge too hard the first time and dislodge the plug you wedged at the bottom of the bore, bending a oil jet and tangling the home bristles.

Not that I did that.
No, I'd also never, ever accidentally do that...😶🔫
 

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a bit, what have you used to clean the deck? Please don't say emery cloth....
 

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That's you, that is.
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Discussion Starter #11
a bit, what have you used to clean the deck? Please don't say emery cloth....
2000 grit wet&dry wrapped round a wooden block and lubed with WD40.

Can’t shift the black areas - think it’s minor erosion.
 

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why does it resemble an 800 in these pics 😂, wash it all to death though, more than once. Have you left the head face alone? I guess you re-lapped the valves while it was apart, nice that it's not far away, just get all the crap off or it'll eat itself ;O)
 

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Discussion Starter #13
There was a little (careful) scraping with a razor blade in a couple of places, too.

You can still see the original milling marks quite clearly, plus I haven’t cleaned the deck very thoroughly yet, so that might be what you’re seeing. Also need to make sure no abrasive slurry got into the cooling passages.

The bores were washed 3 times each with hot soapy water and a dish brush, then wiped with clean oil on a rag until the rag came away clean - hopefully that means I’m good to go!
 

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Also need to make sure no abrasive slurry got into the cooling passages.
or more important, the oil drain/s.
 
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