crankshaft bolt

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ballinchestr

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Does anybody know what size bolt fits into the Harbor Freight Predator engine's crankshaft? I need to know this to attach the clutch, and It doesn't say in the manual.
If you need it, the model number is 69730.
 

OzFab

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Or are you asking what length your bolt should have?
In this case it should screw in at least 5/8" (twice the bolt dia.)

'sid

Measuring it will give you a better idea; that's an absolute minimum but, IIRC, it's around 1.5"

Ballinchestr; next time, try the search function first; this subject has been discussed at length at least twice in the last few months
 

OzFab

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I was sure there was a thread here a short time ago & the OP said he got a bolt from Lowes, the first one he got was in the wrong box & didn't fit so, he had to go back & swap it...
 

Slick68

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Fastenal usually carries all the hard to find stuff that bigger stores don't have.
 

machinist@large

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Ok Fastenal has one, but it doesnt say UNF, so is that ok? its still 5/16-24

5/16-24 is still Unified National Fine thread; Fastenal's catalogue (including their online version) clearly calls out any of the less common thread styles in the description. 5/16-24 is dirt common; any decent hardware store in the continental USA has them; you have to look in the specialty drawers, same as you would to find woodruff keys, setscrews, most of the metric fasteners, etc.

When you go to the hardware store, you need to find the person who is actually in charge of the nuts and bolts; it also helps if they have grey hair (or no hair) and wear glasses. Retiree's from industry are usually some of the best people to help you out; if you go to a big box store like Lowes or Home Depot, you're going to be dealing with catch as catch can. There is almost zero logic to how they assign people, from what I can see.....
 

Doc Sprocket

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Pat- The logic is clear- you get what you pay for. Big Box stores like Lowe's, Home Depot, etc pay a minimal wage. You don't get experts for that wage. You get students, generally unskilled adults, and retirees for that wage. The best you can hope for is a retiree, but even that isn't goofproof. Often, the older applicant knows s:censored:t about the department that they are applying for, they just want a little pension supplement.

True story- A few years ago, my dad thought it would be cool to get a nice cushy gig at the Home Depot's paint desk, going into semi-retirement, and generally take it easy for his last 10 years or so in the work force. He's been in paint all his life- starting with sweeping floors in a paint store as a kid, managing stores, building stores, working in the field. Commercial, residential, industrial. Specialty coatings, asbestos encapsulation, spraying, electrostatic- you name it, he did it. He used to travel with all the tint bottles, and used to tint paint by eye, on site. Ask a Depot idiot to do that- see where it gets you.

Anyways- having damm near INVENTED paint, he applied at the Depot. They offered him like $10/hr. He basically told the guy to go paint himself.

As a painting contractor myself (the apple stayed close) I am pretty regularly frustrated by the stir-sticks that work the desk. Basically- you have to know exactly what you want, because they do not. I'm in a big box store a couple days every week, and invariably end up answering all the other customer's questions. Heck- one day, I needed a specialty coating, and had to tell HIM what he was and was not legally allowed by Canadian law to sell... AAARRRRGGGGGHHHHH!!!

Sorry- rant over. This stuff drives me nuts. On the plus side, they DO provide jobs for a lot of people that need them.
 

machinist@large

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:surrender: Sorry Chris, my bad; maybe I've been spoiled by the fact that around here, we still have at least the dregs of real industry and the semblance of knowledge that usually comes with it.....:surrender:
 

ballinchestr

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Ok sorry, one last thing. there's about 2 mm of crankshaft that the clutch doesn't occupy, so the outer section of it is clanging back and forth while it's idle. Could I just put a big washer on there, or is there some special type of bushing I should pick up?
 
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