Stator preventative replacement.Worth it?


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puttingitoff
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Motorcycle: 1982 GL1100 Standard, 1983 GR650 Suzuki, 2016 HD Road Glide Ultra

Stator preventative replacement.Worth it?

Post by puttingitoff » Thu Feb 15, 2018 8:49 pm



Hi Guys,
I'm finally getting around to my 1982 Naked Wing revival project. It still runs good, but it's been in storage and shows the typical disuse symptoms. You know the routine to come...brake overhaul, fluids, timing belts, water pump, thermostat, hoses, tank cleaning, etc... But while I'm at it I'm going to pull the engine to clean and paint.
So my question is, with only 14k on the odometer should I go ahead and replace the stator so I don't have to pull the engine out again? I'm thinking the $120 or so would be so much less painful then pulling it out again. Yes, the current stator tests fine both wire by wire and at speed. I just don't want to do it twice. Opinions?
Thanks
Puttingitoff



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brianinpa
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Location: Lebanon, PA
Motorcycle: 1984 GL1200 Standard
1987 GL1200 Interstate

Re: Stator preventative replacement.Worth it?

Post by brianinpa » Thu Feb 15, 2018 8:54 pm

If you aren't having a problem, and it tests good, I'd leave it alone. I had 120,000 miles on my 1100 stator, and when it quit, the rotor is what caused the problem... the bolt backed out and the rotor came off the shaft and cracked the rear case.

If it ain't broke, don't fix it.
Brian

If you aren't having fun doing it, find something else to do.

puttingitoff
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Motorcycle: 1982 GL1100 Standard, 1983 GR650 Suzuki, 2016 HD Road Glide Ultra

Re: Stator preventative replacement.Worth it?

Post by puttingitoff » Thu Feb 15, 2018 9:04 pm

I understand the sentiment. Since my wrenching work doesn't come naturally but from the manual, not incidentally creating another problem to chase does have some appeal.

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AZgl1800
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Re: Stator preventative replacement.Worth it?

Post by AZgl1800 » Thu Feb 15, 2018 10:55 pm

I will repeat what was said, "If it ain't broke, don't fix it"
~John

DaveO430
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2004 Suzuki DR200

Re: Stator preventative replacement.Worth it?

Post by DaveO430 » Thu Feb 15, 2018 11:02 pm

AZgl1800 wrote:
Thu Feb 15, 2018 10:55 pm
I will repeat what was said, "If it ain't broke, don't fix it"
I agree. 1100 stators seldom fail anyway.

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DenverWinger
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Motorcycle: 1980 GL-1100 STD Vetter (2005-)
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Re: Stator preventative replacement.Worth it?

Post by DenverWinger » Fri Feb 16, 2018 8:52 am

Best preventive maintenance if it isn't already done is to cut the 3 pin connectors off the yellow stator wires and SOLDER them together. Those underrated plugs eventually start getting hot and corrode, melt the plastic and short together, or one of them will go open circuit. Either condition will burn out a stator, the open circuit condition causing overload on the remaining two phases.
They say 98% of all Hardleys ever made are still on the road..... The other 2% made it home. :lol:
(I stole this from somebody on another GW site...) :roll:

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AZgl1800
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Re: Stator preventative replacement.Worth it?

Post by AZgl1800 » Fri Feb 16, 2018 3:05 pm

DenverWinger wrote:
Fri Feb 16, 2018 8:52 am
Best preventive maintenance if it isn't already done is to cut the 3 pin connectors off the yellow stator wires and SOLDER them together. Those underrated plugs eventually start getting hot and corrode, melt the plastic and short together, or one of them will go open circuit. Either condition will burn out a stator, the open circuit condition causing overload on the remaining two phases.
Just being funny, but when I read this, my mind flashed "He didn't meant to tie them all together in one lump and solder them up. :D

The connectors have always been the weak link in the Honda wiring harness.
The contact pins are too small for the current loads that they carry.
That means the internal resistance of the pin, and the light weight contact pressure, allows for a "high joint" to occur which in turn creates heat, and the connector pin can melt.

So yes, cut the connector out, splice in wire if needed, and make it a continuous wire from stator to regulator.
~John

puttingitoff
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Motorcycle: 1982 GL1100 Standard, 1983 GR650 Suzuki, 2016 HD Road Glide Ultra

Re: Stator preventative replacement.Worth it?

Post by puttingitoff » Fri Feb 16, 2018 5:43 pm

My thanks to all of you who expressed an opinion. I'll be eliminating the connector with (individual) soldered connections as you recommend when I clean up the frame and put the engine back in.
My concern about the stator isn't the miles, but the 36 years it's carrying. But so far it sounds like I might be scratching something that doesn't itch.

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DenverWinger
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Motorcycle: 1980 GL-1100 STD Vetter (2005-)
1993 GL-1500 Aspencade (2017-)
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1972 CL-350 (1980-1988) sold
1978 Suzuki GS-550 (1985-2005) sold
1977 GL-1000 (2002-2006) sold

Re: Stator preventative replacement.Worth it?

Post by DenverWinger » Fri Feb 16, 2018 6:56 pm

AZgl1800 wrote:
Fri Feb 16, 2018 3:05 pm
Just being funny, but when I read this, my mind flashed "He didn't meant to tie them all together in one lump and solder them up. :D
John, That' a good one! :lol:

Mark
They say 98% of all Hardleys ever made are still on the road..... The other 2% made it home. :lol:
(I stole this from somebody on another GW site...) :roll:

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dingdong
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Re: Stator preventative replacement.Worth it?

Post by dingdong » Sat Feb 17, 2018 9:58 am

Chances of a new stator being better than a known good old one are slim.....
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

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Rednaxs60
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Motorcycle: 1985 GL1200 LTD (X2), 2008 GL1800 (sold)

Re: Stator preventative replacement.Worth it?

Post by Rednaxs60 » Sat Feb 17, 2018 10:44 am

The three piece alternator assembly (rotor-stator-regulator/rectifier) on motorcycles are good until one of the components fail. Unfortunately if the rotor/stator assembly ceases to produce the required power, generally requires an engine removal. If it is good, I'd leave it alone. People drive cars and don't change, renew anything until it is necessary why should a motorcycle be any different. Not to say that there aren't items that should be renewed such as bearings, springs and such.

Preventative maintenance of the system can may be prudent. As has been mentioned, you can solder the stator wires and remove the OEM connector. You can also replace this connector with a modern high ampere rated connector such as the Metri-Pack 630 Series connector capable of handling an ampere rating up to 46 amps. This connector is being provided with the newer series RR such as the Compufire 55403 series RR. If you do install a new connector, don't throw out the old one. You can use new pins and use it in a low power circuit.

Check the OEM RR for wire size. The OEM RR for my '85 LTD with a 500 watt rotor/stator assembly only has 14 gauge wires. IMO not an adequate size at all. A newer shunt type RR such as the FH020AA that has modern internal electronic MOSFET components instead of the SCR components is a good upgrade as well. You can also get an SH775 series RR that is used on Polaris ATVs and such for a very reasonable price. It uses the older internal SCR components, but it is a series RR.

When installing a new or new-to-you RR make sure the ampere rating is good for your bike. I have a second '85 LTD and the PO had an RR from a 98-99 Kawasaki ZX6R installed. I would think the ampere rating of this RR is less than required for the '85 LTD that has the potential to output up to 35 amps.

You could also upgrade the OEM shunt type RR with a series RR. Lots of information on the various forums regarding this and the advantages of it.

Everything is man made and nothing lasts forever.

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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SlowTyper
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Motorcycle: 1985 GL1200 Aspencade

Re: Stator preventative replacement.Worth it?

Post by SlowTyper » Sun Apr 01, 2018 12:25 pm

I fully agree with the others who have reiterated the common recommendation: If it ain't broke, don't fix it.

I have had to repair three replacement stators (on different GL1200s), each with different manufacturing defeats. So there is a good chance that you could be putting in a "new" stator that is less reliable than the one you currently have!

In many cases, the stator failure is precipitated by a different problem. In that scenario, replacing the stator before it burns out is a waste of time and money.

So, I would take a close look at the other causes, such as the infamous unreliable connector near the battery that's already been mentioned above. Another cause is old oil -- change your oil at the end of the riding season rather than the beginning, so the stator does not sit in old oil. These, and several other things, are well documented in this forum. Search stator failure...

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Hoosier Jack
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Re: Stator preventative replacement.Worth it?

Post by Hoosier Jack » Mon Apr 02, 2018 8:46 am

Not to go against conventional wisdom, but when I had my motor out to paint it a couple of seasons ago I went ahead and changed the stator. I almost lost my religion, and a finger, pulling, and installing, the circlip out of the drive shaft. New doesn't mean that it won't fail, but I feel better about it.

Changed the pulse generators and clutch plates as well. Did I throw parts and money at the thing? Yep.



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