Idle Air Control Valve/motor - Good News

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Idle Air Control Valve/motor - Good News

Sponge Boy
4 years ago

Hey guys,
Had an interesting situation this weekend;
My IAC played up for the third time in 11 years.
First couple times I removed the IAC, cleaned it out, degreased it, switched ignition on and off to cycle the plunger, degreased and cleaned out the idle air orifice and re-assembled.
It was an absolute bitch getting the bugger out though; needed to use a custom bent torx key and a lot of patience.
This did the trick both times.
On Saturday it happened again; bike was ok getting to the convention centre but, on the way home, it just didn't want to idle.
This time when I tried to clean out the IAC I switched on the ignition to cycle the plunger and sprayed degreaser into the IAC while it was going in and out. Unfortunately something went wrong and this time the plunger came all the way out and it, and spring, flung across the room.
Tried many things to get it back in but no chance. It was rooted.

I needed the bike on Sunday so I was desperate to get the bike going.
There was a part number on the IAC (59603) and a stamp saying "Assembled in Mexico".
A search on the internet showed that the same item with the same part number was available on Alibaba from China for about $4.50 but a minimum quantity of 100 pieces.

A further search showed that a virtually identical unit was used in the Holden Commodores.
A further search showed that Repco has a virtually identical item with part number SKU: A9334787 which was also for the Commodore.
Found one in stock at Sunshine Repco and went to check it out.
There was no way of finding a cross referenced number with the original part number but it looked virtually identical and it was only $40.00
I knew if it didn't suit I could not take it back.
Bugger it ! Took a risk and bought it.
Fitted it at lunchtime today.
IT WORKED LIKE A DREAM !

There you go; a Holden IAC works on a Harley !

Moral of the story: Do your homework and you could save yourself some money rather than throwing $$$$ at the local Harley dealership.

I will check on Tuesday but I bet Harley charges at least $140 for the same unit.

Baloffski
4 years ago

Well done, that is a win.
AAA for homework sponge boy.

HOG63
4 years ago

Sorry if I missed it it , but for which bike(s) is this applicable? Just so I can pass it on.
Thanks.

(I ride old school carby Sporty.)

Sponge Boy
4 years ago

Quoting HOG63 on 12 Jun 2019 08:28 AMedited: 12 Jun 2019 08:29 AM
Sorry if I missed it it , but for which bike(s) is this applicable? Just so I can pass it on.
Thanks.

(I ride old school carby Sporty.)

My bike is a 2008 Superglide but I think the Idle Air Control Valve (or Motor as the Americans say it) suits many Harley models

HOG63
4 years ago

Quoting HOG63 on 12 Jun 2019 08:28 AMedited: 12 Jun 2019 08:29 AM
Sorry if I missed it it , but for which bike(s) is this applicable? Just so I can pass it on.
Thanks.

(I ride old school carby Sporty.)

Quoting Sponge Boy on 12 Jun 2019 11:21 AM
My bike is a 2008 Superglide but I think the Idle Air Control Valve (or Motor as the Americans say it) suits many Harley models

Cheers.

tussuck
4 years ago

The part number on my 09 883 for the IAC is: 27628-01A (which means it came out in 2001 so I think you will find that the same part number will fit MANY EFI model bikes).
I did the same thing on my Sporty to clean it.... removed it and turn the ignition on only to watch the thing unwind and have bits go flying all over the place...lol

Sponge Boy
4 years ago

The only "problem" with the part that I purchased is that the wiring socket is angled to the right instead of the left.
The wiring does reach but only just, and the insulation sleeve virtually touches the bolt on the fixed end of the engine stabiliser.

BTW, found out today that Harley Heaven wants $76 for the original part.

Sponge Boy
4 years ago

Hi Loopie, would you please send me a link for that $20 item you found.
Thanks

Sponge Boy
4 years ago

Solved the wiring clearance problem.
Rotated the body of the control valve. Just means that the screws don't actually go through the flange holes.
All good.

By the way, looks like the Holden Jackaroo Idle Air Control Valve would work perfectly and even cheaper at $28.66

tussuck
4 years ago

Thats so friggin dodgey!..

Sponge Boy
4 years ago

Quoting tussuck on 15 Jun 2019 11:49 PM
Thats so friggin dodgey!..

Not at all mate. Used Loctite on the screws. The flange of the valve body is locked in and can't rotate.
As long as the valve body cannot rotate, it will work fine.
Went for a long ride today (Plumpton to Sunshine to St.Andrews to Glenburn to Flowerdale and back) no idle issues at all.

Grease Monkey
4 years ago

Orientation is slightly different,
Commodore.

Jackaroo...

tussuck
4 years ago

Ahh I get it now. You used anther plate over the AIC to hold it in place. Is there no way to just turn the connector on the IAC body or is it a single molded unit?

fatbat
4 years ago

So which Holden IAC is the best one to buy in terms of an easy fit?

Sponge Boy
4 years ago

Quoting fatbat on 17 Jun 2019 04:17 AM
So which Holden IAC is the best one to buy in terms of an easy fit?

The Holden Jackaroo IAC is the best fit because the wiring socket is angled towards the left, just like the original Harley IAC.
https://www.ebay.com.au/itm/Idle-air-speed-control-valve-for-Holden-UBS25-JACKAROO-3-2L-92-98-6VD1-ISC-IAC/151352170124?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

Sponge Boy
4 years ago

Quoting tussuck on 16 Jun 2019 11:59 PM
Ahh I get it now. You used anther plate over the AIC to hold it in place. Is there no way to just turn the connector on the IAC body or is it a single molded unit?

That plate was always there; it clamps the IAC into place and also supports the ends of the accelerator cables.
Usually the two screws go through that steel plate and also through the holes on the IAC flange.
I rotated the bod of the IAC so that it suits the wiring plug. It just means that the screws don't go through the holes of the IAC flange.

fatbat
4 years ago

Thanks spongeboy good tip

Topics

Idle Air Control Valve/motor - Good News

Idle Air Control Valve/motor - Good News

Sponge Boy

Baloffski

HOG63

Sponge Boy

HOG63

tussuck

Sponge Boy

Sponge Boy

Sponge Boy

tussuck

Sponge Boy

Grease Monkey

tussuck

fatbat

Sponge Boy

Sponge Boy

fatbat