Crankshaft Balancing

**LINKS** · 02-16-2021, 03:44 PM

Who is balancing outboard cranks? Have a 200 V6 Yamaha 2 Stroke I need done. Also piston and rods balanced.

**25two.stroke** · 02-17-2021, 03:13 PM

Marine Crankshaft in Santa Ana, CA

**LINKS** · 02-17-2021, 07:41 PM

Nope! How about Monty Racing?

**25two.stroke** · 02-17-2021, 07:45 PM

Did Marine Crankshaft tell you they wouldn't do it? And if so, did they give you a reason? In the past they have told me that they work on everything.

**Chaz** · 02-18-2021, 09:49 AM

Originally Posted by LINKS

Nope! How about Monty Racing?

Yep ! 954-328-4445

http://www.montyracing.com

**Stoker boy** · 02-18-2021, 09:00 PM

Originally Posted by 25two.stroke

Did Marine Crankshaft tell you they wouldn't do it? And if so, did they give you a reason? In the past they have told me that they work on everything.

I asked if they could check balance on a 2.5 crank I was told NO! Dave said “it’s a big hassle he needs the complete rotating assembly. He was not interested in doing the job.
I asked when cranks are manufactured or repaired are they not balanced. At that point he said he had to get off the phone he was busy. I hear the guy is very good at what he does. I don’t care much for the way he speaks to customers.

**25two.stroke** · 02-19-2021, 07:30 PM

Damn. I've been getting the same kind of response on shops tying to find someone to lighten and balance an obscure flywheel for me. I know they can all do it, but they feel like its a waist of time or not enough money or whatever...and it makes people shut you out. Its like people don't want to try new stuff anymore, they just want easy money.
I hope you can find someone...I don't know any others than marine crankshaft. everyone else I know sends them out, but I don't know who they send them to. If you can get a hold of John Marles (US1) he may be able yo point you in the right direction.

**RBT** · 02-19-2021, 09:07 PM

Try Falicon in Clearwater.

**Stoker boy** · 02-19-2021, 09:40 PM

I had a 2.5 crank checked for balance about 10 years ago from a company called national crank in Anaheim California. They don’t specialize in Marine cranks but it was a large in house facility.
714-634-3803.

Power performance engineering in Clearwater Florida has some very nice fly wheels I don’t know if he does his work in house but I asked if he could check balance on an existing stock fly wheel and he said he could.

Years ago I had a gentleman by the name of Bob Cottman lighten a fly wheel for me that seemed to work pretty well.

**MattGreen** · 02-19-2021, 10:52 PM

Try Revco Precision Balancing in Long Beach - I believe they have done looper OMC cranks before. RBT's suggestion is also a good bet.

Matt

**rude tim** · 02-20-2021, 11:39 PM

Give Larry at Revco Ballancing. +1 (562) 428-7481 He has balanced my V6 and V8 OMC cranks. He does an awesome job.

**Chaz** · 02-21-2021, 01:02 AM

Originally Posted by Stoker boy

I asked if they could check balance on a 2.5 crank I was told NO! Dave said “it’s a big hassle he needs the complete rotating assembly. He was not interested in doing the job.
I asked when cranks are manufactured or repaired are they not balanced. At that point he said he had to get off the phone he was busy. I hear the guy is very good at what he does. I don’t care much for the way he speaks to customers.

Actually he gave you a great education .. or partial , for free.
He did say he was busy so the lesson was over. What he told you was 100% true.

I have vendors I deal with in Gavenland who use to have parts at my door 5 to 7 working days. 10 to 12 WEEKS seem to be the new norm ... that alone will tend to make a fella a bit testy ..

Not saying you were a bit wrong .. but here's how it sounds .

Sir, I putting this motor together, can you "just" check the balance for me. ???
( A friend called me tonight, Charlie can you weld some aluminum for me. I know your busy .. but it should only take 20 minutes .. tops )

Sounds like no matter what ... I'm gonna get paid for 20 minutes .. tops

And naturally , I have to put it to the front of the line ..

And telling him he was going to "check the crank's balance" hints to a cheap job and how to do it .

Now had you said : My pistons weigh XXX , ring stack XX , Pin W/needles XX , Clips XX , Big end of the rod W/ bearing XXX, Small end XXX , Here is my crank and flywheel ... and my bud in Florida says he does everything from Chevys to Mercs @ 52% over. I'd like the same thing. Yes I understand you want to Zyglo the parts , can't blame ya ... it could be cracked now and fly apart later .. Ahh dude , who was the last guy to touch the hot potato .. they must do terrible work ..

capice'

There is no set standard ... It's what your particular parts weigh , intended RPM and use.

My best lesson 40 years ago ..

I was trying to get a crank "perfect" After a half hour of moving a half a gram around with a 1/4"drill bit leaving little pecker tracks all over a brand new piece from "Hank the Crank" .. the boss came over .. beet red WTF are you doing ???
I getting this one perfect !!!!
He picked up a squeeze bottle of oil , goober'd a bunch of oil on the crank , hit the switch on / off .. when it stopped it was 10 or 11 grams out of balance .. he said , go in the bathroon , wash that **** off of you , bring the mop back , mop the floor , wall and celling .. then polish all them pecker tracks of those counters , wash that ******* thing , put it in the box and turn in your paperwork on the job . There's three more I need you to do before we close today ..
I learned when to stop. I learned all about windage . Andddd , I learned how to mop overhead ..

SW and Hines both agree .. 36 to 50 % over is the range to shoot for ...

https://hinesindustries.com/images/p...lmass_2020.pdf

**Stoker boy** · 02-21-2021, 02:47 AM

Chaz,

I acquired a used crank I checked it in the block and it seemed a few rod journals were off about 4 tho. I asked Dave if he could check the balance and give me his opinion of the overall condition.
I did not ask for his advice on how to build a race motor.

His attitude is like that of a lazy employee and not that of an owner.
I did not ask for a time frame or price.
I hear he does great work, I won’t use him.

On a side note, I’ve been running my two businesses for 40 years. I have a little bit of knowledge on how to speak to clients.

**Capt.Insane-o** · 02-21-2021, 03:24 AM

Another vote for Falicon.

**Chaz** · 02-21-2021, 10:37 AM

Originally Posted by Stoker boy

Chaz,

I acquired a used crank I checked it in the block and it seemed a few rod journals were off about 4 tho. I asked Dave if he could check the balance and give me his opinion of the overall condition.
I did not ask for his advice on how to build a race motor.

I'll try again,

Overall condition .. fair question.
Bearing journal sizes would be included in that assessment.
However .... without knowing individual parts weight .. there is no one who can "balance or check the balance" of a crankshaft , unless it is a flat plane crank that requires no bobweight as outlined in the PDF file I attached.
I never said "you asked for advise" . But had you become a customer , I would think that he / anyone would be happy to answer questions pertaining to their area of expertise.

His attitude is like that of a lazy employee and not that of an owner.
I did not ask for a time frame or price.
I hear he does great work, I won’t use him.

On a side note, I’ve been running my two businesses for 40 years. I have a little bit of knowledge on how to speak to clients.

Honestly , it sounds like you never got to the time frame or cost ... because .. well ,
no ... I said it twice already.

I just wonder how many people he has had to tell what it entails to balance a crank and they responded .. No , you don't understand I just want the balanced checked.

He won't do it your way ... I'm thinkin about going to Publix to buy a couple of steaks .. then I'm goin to take them and my bride to Outback , tell the guy standing at the grill how to cook them .. and then think I have the right to complain when they didn't come out just how I wanted them .. I hope that made sense.

As far as being in buiz 40 years .. you know the red steaks .. err .. flags.
Brother, in this case you were that guy waving one in each hand.

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Tom Falicon sold his assets to the " Wiseco, CP, JE, K-1, Boostline, Advanced sleeve" conglomerate .