vicman

My Feedback: (10)

Sheet, bar, coil, and wire are offered as cold rolled product. Plate is thicker and not available.
I will not stray any further from the topic. If you require further definition feel free to pm me.

Ken6PPC

Dave, have you ever straightened a crankshaft that was bent in the area INSIDE the case? Seems that would be a lot tougher to do. Perhaps a better question would be, have you ever SEEN one bent in that area?

Flyboy Dave

My Feedback: (21)

Nope....they always bend at the weakest point, and that is right where the threads end,
at least the ones I've seen.

YUKONFLYR

Dave - Thank you very much for your very generous offer to straighten bent cranks. Just wanted to let you know that it does not go un- noticed.

The way I see it.....if you have a bent crank, you have two options, only one if you can't straighten them and that is to replace the defective part.

Fix bent cranks instead of replacing[sm=thumbs_up.gif]
Have it done by a professional [sm=thumbs_up.gif][sm=thumbs_up.gif]
And the best part.........
For FREE!!!! [sm=biggrin.gif][sm=biggrin.gif]

Whats there not to like about that?

If I ever get a bent crank, I will be sending it to Dave,

Thanks Dave, again for your offer!

Richard

Flyboy Dave

My Feedback: (21)

Thank you for the kind words, Richard.

I enjoy helping others in this hobby....goodness knows it's expensive enough as it is,
and the parts prices are rather high. I get a kick out of fixing things, and beating the
system out of a few bucks whenever I can, and I don't mind spreading some help
around if I can. Besides....I have a new dial indicator and stand, and a new brass
dead blow hammer to put into action....

....let the fun begin.

rainedave

My Feedback: (1)

That attitude is exactly what makes rc such a great hobby. Modelers helping modelers.

David

vicman

My Feedback: (10)

Dave,
Do you want the whole engine or just the crank?

Flyboy Dave

My Feedback: (21)

The best thing for me, is to have the crankcase w/bearings, or bushings....and the crank like this:

the pope

Got me there ,I was only thinking of the stuff I use to work with. By the way an old trade school instructor once told me a boilermaker \welder was a sheetmetal worker with his brains beaten out.[:-] That should set the cat amonst the pidgens. Cheers the pope

Broken Wings

My Feedback: (20)

Just curious Dave, have you run across any new engines that don't have a 60 degree chamfer on the big end or a center drill on the small?
So you can run the crank between centers.....

Flyboy Dave

My Feedback: (21)

....not really....any engine turned like this could checked on centers, like on a lathe. I have
seen some older engines that were not turned on the big end... just rough cast and drilled
for the air passage.

Flyboy Dave

My Feedback: (21)

....it hasn't arrived yet, Craig. Maybe monday.

Kimhoff

My Feedback: (22)

Flyboy,

Can you give a step by step for doing this? I have the tools to do this but want to confirm the approach.

Thanks

Flyboy Dave

My Feedback: (21)

....yep. I'll show exactly how it's done....no problem.

FBD.

Edwin

My Feedback: (2)

I may have one for you later today. I planted my P90 yesterday and took 5 minutes of pulling and wiggling to get the saito 120 out of the ground. Will know after I disassemble it.
Edwin

Flyboy Dave

My Feedback: (21)

Well Edwin....hopefully it's not bent....

....but if it is, it can probably be straightened.

craigpuckett

I sent it out thursday Dave,like you said "maybe Monday" [8D]

Flyboy Dave

My Feedback: (21)

....did you say the crank was stuck in the case ???

craigpuckett

no,not stuck just don't turn freely,like its binding somewhere,can't tell if its the front or back bushing,or maybe the counterweight scraping the inside of the case. I didn't have any blueing to check it with.

Flyboy Dave

My Feedback: (21)

....OK, Craig....that should be a fun one.

Edwin

My Feedback: (2)

WOO HOO!! Wont be sending you a crank Dave. I got lucky. Tore it down last night. The bearings are silky smooth and I cant measure any wobble.
Edwin

Flyboy Dave

My Feedback: (21)

....great luck, Edwin....nobody really wants a bent crankshaft....[sm=thumbup.gif]

Craigs crank didn't come in yesterday....[]

Flyboy Dave

My Feedback: (21)

....good news....Craigs block and crank came in today....

....now, this is the way to send something like this....talk about crush proof !!!

Flyboy Dave

My Feedback: (21)

....yep....it's kinda' bent I would say.

craigpuckett

I am glad it made it Dave,the spam container worked good I see

I guess you understand by now what I was saying about the "sticking in the case" issue.