Nissan Genesis 59 pulley hub mod

AshleyMckendree · Jun 23, 2015

If you own a Nissan genny, you know the aluminum sheave becomes worn and burns through belts,
I took mine to a machinest and had them lathe it down to a 1.5" keyed shaft. Now I can put any sheave I want on there.

http://i1294.photobucket.com/albums...7-B234-4CBA-92F5-2059FE6EAE38_zpswpfrw7fx.jpg

http://i1294.photobucket.com/albums...A-A1A2-44E0-9F54-9CA605D4FE3A_zpspyopsnnf.jpg

Desk Jockey · Jun 23, 2015

Ashley I thought you were primarily VLM?

Do you do some homes or HWE commercial too?

AshleyMckendree · Jun 23, 2015

Desk Jockey said:
Ashley I thought you were primarily VLM?

Do you do some homes or HWE commercial too?

I'm an all method guy. I'm 80% commercial.

dgardner · Jun 23, 2015

That's a great idea!

Lee Stockwell · Jun 23, 2015

My wife HATES when I use her Sienna to haul around my "projects". Had Justin use it to sneak a 405 out of TX.

GeneMiller · Jun 23, 2015

I don't know why but these are the kind of things that fascinate me. A lathe and and a good machinist.

Gene

AshleyMckendree · Jun 23, 2015

GeneMiller said:
I don't know why but these are the kind of things that fascinate me. A lathe and and a good machinist.

Gene

I felt right at home in this filthy smelly machine shop, I almost asked if I could work there for free,
Just so I could learn how to use all the equipment.

GeneMiller · Jun 23, 2015

I have a friend with a machine shop. I can stay there all day. I took a panel in to have cut and they just slide it in and press a button. A big shear comes down. Nice , clean, efficient.

Gene

Lee Stockwell · Jun 23, 2015

My dad was an awesome machinist, a magician with anything metal. Justin later worked in the same shop Dad did.

Me? I read books...lol

dgardner · Jun 23, 2015

I have a little machine shop at home with lathe and vertical mill. I love that stuff. Your machinist turned a nice radius where the "shaft" meets the hub instead of tuning a hard inside corner - great for reducing the chance of forming stress risers and cracks. He knows what he's doing.

tubad sosad · Jun 23, 2015

would you do this if you owned a different TM with a nissan A15 on it? do sheeves come in stainless or just steel? where is a good place to buy sheeves at?

it looks like he did a really good job. thanks Ashley

dgardner · Jun 23, 2015

All the heavy-duty sheaves I have ever seen were cast-iron, but my experience is mainly with industrial machinery. Stainless ones would be fabulously expensive. Aluminum is considered light-duty as Ashley mentioned wear is a problem.

Fortunately though, the belts running in the cast-iron grooves keep them nicely polished, and you can paint the other bits....

TConway · Jun 23, 2015

It looks awesome, just keep belt tension down, don't overdo it as it really may just snap that sucker right off. That 59 is going to put a big load on the aluminum. It worked awesome before, but that was a massive piece of alum. that was machined down with belt grooves in it. I don't want to be a party pooper but this might not work.
The pulley set up has given me the most problems on my project, blowers are powerful, I just snapped a 7/8 steel shaft being stupid again.

Mikey P · Jun 23, 2015

What is your goal with this Ashley?

JS41035 · Jun 23, 2015

Lee Stockwell said:
My wife HATES when I use her Sienna to haul around my "projects". Had Justin use it to sneak a 405 out of TX.

Hands down the most ghetto thing I've ever done. Yes technically it fit. With literally a quarter inch to spare. So much easier than just pulling a trailer.

dgardner · Jun 24, 2015

Mikey P said:
What is your goal with this Ashley?

AshleyMckendree said:
the aluminum sheave becomes worn and burns through belts

AshleyMckendree said:
Now I can put any sheave I want on there

AshleyMckendree · Jun 24, 2015

TConway said:
It looks awesome, just keep belt tension down, don't overdo it as it really may just snap that sucker right off. That 59 is going to put a big load on the aluminum. It worked awesome before, but that was a massive piece of alum. that was machined down with belt grooves in it. I don't want to be a party pooper but this might not work.
The pulley set up has given me the most problems on my project, blowers are powerful, I just snapped a 7/8 steel shaft being stupid again.

Tom I hear ya, as this was 3 B belts before, It will now be 3 5vx belts, which need very little tension. And I will have MUCH larger pulleys.
If this doesn't work Ill have the broken shaft machined smooth, and bolt a sheave to the then flat aluminum plate...

Which has me thinking... once the sheave is on the shaft, I could use the bolt holes in the sheave as pilots to drill through and tap the aluminum and have longer bolts go all the way through to the aluminum plate, greatly decreasing the strain on the shaft itself.

Doug Cox · Jun 25, 2015

Makes me wish I hadn't tossed my old pulley when I replaced it. I'm now wondering if any A15 machines were built with larger 3 groove pullies.

Doug Cox · Jun 25, 2015

Seems odd that only guys that put tons of hours on those Powerclean pulleys have any problems with them wearing out. How many hours on yours so far Ashley? Didn't you start at like 1100? I have about 11000.

TConway · Jun 25, 2015

AshleyMckendree said:
Tom I hear ya, as this was 3 B belts before, It will now be 3 5vx belts, which need very little tension. And I will have MUCH larger pulleys.
If this doesn't work Ill have the broken shaft machined smooth, and bolt a sheave to the then flat aluminum plate...

Which has me thinking... once the sheave is on the shaft, I could use the bolt holes in the sheave as pilots to drill through and tap the aluminum and have longer bolts go all the way through to the aluminum plate, greatly decreasing the strain on the shaft itself.

You sound like me and the VW tm I broke my pulley again, totally my fault, I have new parts just haven't had the time to go swap out the pulley.

Which has me thinking... once the sheave is on the shaft, I could use the bolt holes in the sheave as pilots to drill through and tap the aluminum and have longer bolts go all the way through to the aluminum plate, greatly decreasing the strain on the shaft itself.
This is exactly what I am going to do also

AshleyMckendree · Jun 26, 2015

Doug Cox said:
Seems odd that only guys that put tons of hours on those Powerclean pulleys have any problems with them wearing out. How many hours on yours so far Ashley? Didn't you start at like 1100? I have about 11000.

I honestly don't know for sure, But I think the previous owner never tightened the belts properly the entire time he owned it, and just burned through belts every few weeks.

I cooked up a "Push down idler" that helped the belts last a lot longer, but they would still slip... And the pulley got more and more worn.

If you look at the zoomed photo, you will see just how worn the pulley was, one side of the belts weren't even touching the pulley.
A large feeler gauge could slide between the pulley and the belt.

GeneMiller · Jun 26, 2015

Nice to see somebody actually knows the correct way to tension a belt. Pushing down increases the belt contact on the pulley reducing slippage.

Gene

Doug Cox · Jun 26, 2015

I just replaced my Powerclean pulley with a Prochem pulley that was 8". I then replaced the sheave with an 8 inch one. I went from 3 belts to 2 and the machine runs perfectly fine with just one belt. I've been burning through belts lately, so I have to work on wrapping the exhaust and trying to move it away from the pulleys.

Lee Stockwell · Jun 26, 2015

GeneMiller said:
Nice to see somebody actually knows the correct way to tension a belt. Pushing down increases the belt contact on the pulley reducing slippage.

Gene

not always.
Depends on the construction of the belt.

AshleyMckendree · Jun 27, 2015

Gates green belts and most BX belts are stated to be rated for back side idlers.

I loooooove me some "Belt wrap"

TConway · Jun 27, 2015

Okay, going out to work on my pulley problem UUUUUGGGG. Truthfully I am not looking forward to this.

TConway · Jun 27, 2015

Well crap, it didn't go as planned, so I have to come up with a better design. I have a plan just was hoping to not have to do it damit

GeneMiller · Jun 27, 2015

Doug Cox said:
I just replaced my Powerclean pulley with a Prochem pulley that was 8". I then replaced the sheave with an 8 inch one. I went from 3 belts to 2 and the machine runs perfectly fine with just one belt. I've been burning through belts lately, so I have to work on wrapping the exhaust and trying to move it away from the pulleys.

Doug, try placing a radiator fan blowing across the belts. My blueline ate belts when I first got it. They would completely disintegrate. I went through 3 sets pretty quick. Once I placed the fan I never broke another belt. I only replaced them once after that just as general maintenance. The expected life at 70 degrees is something like 20,000 hrs. Every 10 degree increase dramatically decreases life. It's from memory so could be flawed. What matters is cooler will last longer. Alignment is also critical.

Gene

dgardner · Jun 28, 2015

GeneMiller said:
What matters is cooler will last longer. Alignment is also critical.

Absolutely.

That and proper tension.

AshleyMckendree · Jun 28, 2015

Guys, ive used these brake cooling fans that nascar uses, to cool my direct drive clutch off in the past. they move a ton of air

http://performanceunlimited.com/cobravalley_drivetrain/ductfan.html

Nissan Genesis 59 pulley hub mod

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