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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Is it a crack or simply a oil leak from the rocker box?
Whoa... I don't think so... I'm going to have to get out my magnifiers tomorrow when it's daylight and I can open the garage door. Man, I'd be thrilled if it were but... well, we'll see!
That's hilarious... I've actually had rattlers in the entry courtyard and once in the garage when I was wedged in between my Quick Jack scissors trying to reach some component on an auto. This little guy was cute, comparatively speaking...
I like Pacific Mike. He's got some good stuff that's applicable to the panhead.. I couldn't find a follow-on to that video.. He shows some cases that had been cleaned before but I wonder what he was using for cleaner on those? Dawn and water? I suspect only water. In that case what he is likely removing is polishing compound buildup.. It's not more than a wax with abrasive.. At 80C, it will soffen.
I have the exact same cleaner along with a HF smaller one.. Tried Dawn, Simple green, Purple whatever, metal descaler (has a little phosphoric acid) , fuel tank sealing kit soap, some swiss air filter cleaner and automotive industrial cleaner. They either don't work or discolor the metal.. I'm thinking of trying PH sensitive wheel cleaner but really don't have anything I need cleaned right now.
I’ve used Sno-bol toilet cleaner with distilled warm water with good results.. but soak just a little at a time. Too long and it will eat it. I’ve used it on shovel cases and many vintage carbs, intake manifolds.
Sorry for the delay. I wiped with a rag soaked in some Simple Green and it looks like a little crack, as you can see--though the balance of it came off...
What's weird is that there's no evidence of oil leaking from the valve cover I can see, so I don't understand how what Maxheadflow rightly identified as oil extended upward from the crack... or maybe by coincidence it ran down to meet it somehow?
Guess I should take a brass or stiff nylon brush and scrub with some Simple Green to see if my eyes are deceiving me. But it sure looks like a crack...
Looks like the same Offy air horn but evidently some guy just sanded and polished it, then attached it to a cruddy tin base and wedged a perforated metal plate into the inlet. It seems to me unlikely to flow anything like the amount of air the engine requires. Probably just for show...?
Compare the first three photos--his crude setup--with the following three pics of what I produced. The chief difference is my design and execution are form-follows-function vs. his approach, which is precisely the opposite.
Incidentally, I'll be selling my prototype whenever I get around to rebuilding my Pan-Shovel's bottom end next year. I have designed a new, more traditional-looking circular low-profile unit using an extrapolation of the same base you see here. It's very sleek, polished aluminum, and yet retains the knee-to-tank goal of the Offy setup I came up with.
BTW, what he's asking is just... well, to my mind, outrageous for what he's produced. Especially because the bike is going to run like c*#@p with the thing installed. While looks are subjective and someone may or may not like the Offy air horn (polished or unpolished--just a matter of a day's work), my setup flows great.
The only downside appears to be a slightly increased tendency to vapor lock on very hot days at my altitude (5,000~6,000 ft), with the corresponding thin air. That's another reason for my new design, which doesn't create a kind of culdesac, if you will, which retains vapor when the engine is sitting still.
I should have had a good look before I shared, sorry. Keep up the good work...
Oh, no, I didn't take it that way at all--and didn't mean to make you feel bad for pointing it out. You were 100% right that it's the same unusual Offy air horn adapted to the same carb.
I was just concerned that someone might mistake this guy's shoddy work for something I had put out. That's not intended as bragging; it's just that I won't offer something unless it's good enough to go my own car or bike--and works as intended.
Fact is, I've had one (seriously, just one) part returned since 2014 when I started my MG/Austin Healey/Morris Minor-related business, Creative Spridgets, and it wasn't dissatisfaction with the part itself. The guy just changed his mind. I'm weird, perhaps, but it isn't about making money so much as making people happy.