ACCT Preload, How Much?? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 16 (permalink) Old 10-19-2006, 08:34 AM Thread Starter
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ACCT Preload, How Much??

I have set my ACCT's with one turn of pre-load. When cold, perfect no noise at all.

After thoroughlly hot, I am getting some noise from the front cylinder.

Has anyone experimented with more than one turn of pre-load?

Jon
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post #2 of 16 (permalink) Old 10-19-2006, 12:36 PM
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I don't think you will ever get rid of all the noise from our engines. The ACCTs plunger is a one way operation. It only adjusts out, not in. Once the plunger has adjusted, it only has one way to go, futher out. The pre load won't help at this point. Because of this, what may be quiet at one temperature or speed may not be quiet at another temp and speed due to expansion of parts, viscosity of oil, and several other factors. The twin chains don't help either.

Jim W
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08
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post #3 of 16 (permalink) Old 10-19-2006, 03:48 PM
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You can try a different oil brand, viscosity, or type. That's about all. Some people have broken their springs with less than a turn, so you gotta be careful. Another problem is that the spring "keep" can slip out of the notch in the housing when you give it too much preload.

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post #4 of 16 (permalink) Old 10-19-2006, 04:09 PM Thread Starter
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Quote:
Originally Posted by cegodsey
You can try a different oil brand, viscosity, or type. That's about all. Some people have broken their springs with less than a turn, so you gotta be careful. Another problem is that the spring "keep" can slip out of the notch in the housing when you give it too much preload.
TOC suggested to use 1 turn pre-load, so I did. Using Castrol GTX 10W-40.
Is there a more popular choice?

Jon
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post #5 of 16 (permalink) Old 10-19-2006, 10:26 PM
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I don't know of a more popular choice, but I am experimenting with a new oil.

I changed oil at first with Castrol Syntec 5w-50w, I am hearing every noise there is to hear in the engine and clutch. This is a great oil, but maybe a little thin for this bike.

I have decided to try the Castrol R4 Superbike 10w-40w, It is made for motorcycles and it may or may not be a better choice.

The additives (thinners) used in auto oil may be a bit too thin to use in the bike.

I believe in a top flight oil like Castrol, I just think maybe I need to use the motorcycle formula.
I also believe in using synthetics, I think they are superior to petroleum.

(Please....No Flames......) This is just my opinion.....


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post #6 of 16 (permalink) Old 10-20-2006, 02:18 AM
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No flame, but just thought I'd put in some info from my last oil change. I was running whatever the Kaw dealer put in the bike after the stator change. Went and got some synthetic - Mobil-1 MTX4 for motorcycles - I used to use Castrol Syntec. From what I read here, I switched to a "made for motorcycles" synthetic. Boy, what a mistake. Although we all know that synthetic is a better oil, it sure brought back all the cam chain clatter, as well as the coffee grinder clutch. I want to stick with synthetic, so I'm fixing the other problems, even though it would be cheaper to just change back to dino oil.

I also have the TOC springs.

2000 A16
Drilled baffles
$65 leather saddle bags
Kuryaken grips
relocated R/R
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post #7 of 16 (permalink) Old 10-20-2006, 05:51 PM
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If you have the TOC spring, don't put too much preload on (about a turn should do). With the stock ones, I think someone put 3 or 4 turns (I think several times bzzzt was heard from the acct followed by *#*[email protected]*! from owner). They are not really one way - ie they don't stay locked but it does take a lot of force to move it. With the bike running put a precision screwdrive on/in the font one (you will need a rag - it will get a little messy) - you may be supprised just how much the acct moves.

Deuce (Loran Naperville IL)
1995 VN750 (Black w/ 2004 tins - no teal)
2003 VN750
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- Corbin seat w backrest
- Progressive suspension.
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2 1983 V65 Magnas
2 1985 V65 Mangas (1 which is in many parts)
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post #8 of 16 (permalink) Old 10-20-2006, 07:17 PM
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it should be on a shock absorbing spring arm, much like how ford puts the belt tensioners on their trucks......

'04 Vn750
Currently Installed
nat'l cycle deflector shield
westco 12v30 MF, 30A/h w/ 350 CCA's w/ custom box
TOC stator cover w/ Frankenstator mod!
R/R relo

Soon to have (own or on order)
TOC ACCT's
Mez's 110-FRT 170/80-Rear
Custom rear fender and tail light
Givi hard bags w/ custom rear turn signals


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post #9 of 16 (permalink) Old 10-20-2006, 09:34 PM
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FRom what I have read, the Shell Rotella meets every motorcycle oil spec but one. Its sulpher content is just a bit higher than the motorcycle spec calls for. All others are good to go. I tried the 5W40 syn and like cegodsey, heard every noise the engine could produce. Since I plan on changing oil every 3K or so, I went back to dino oil but the Rotella 15W40. No problems since except the coffee grinder clutch which I will blame on the synthetic oil. It didn't do it before I tried the syn. Dino oil hasn't stopped it though so who knows?

Jim W
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08
21480 Miles
VROC #8542
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post #10 of 16 (permalink) Old 10-20-2006, 11:19 PM
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Have you tried leaning the bike to the right after stopping the engine? I think what the synthetic is showing us is that it sticks to the clutch hub whereas regular dino drips right off when hot.

2000 A16
Drilled baffles
$65 leather saddle bags
Kuryaken grips
relocated R/R
de-badged
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