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post #1 of 4 Old 08-30-2013 Thread Starter
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Kanzaki tranny hiccup

I purchased a C&C 30 end of last season. PO stated they had just changed all fluids, and I am just now getting around to changing my transmission fluid.

The tranny was working fine, but I noticed it was catching a bit when trying to shift into forward gear, so I decided it was time for a change.

The plate on the back states that it takes 0.3L of SAE 20/30. I found a pennzoil conventional 30W at walmart, the bottle says something about older model trucks and has specs of "ILSAC GF-5; API SN"

So, I pump out 300mL, and add 300mL of new oil. The catch in shifting is now gone, but, when shifting into forward gear at idle, it takes 4-6 seconds to engage. I am able to get it to pop into gear if I rev the engine a bit. Reverse engages immediately.

I thought maybe I over/underfilled, so I pumped out 300mL and added another 300mL. Same issue.

Wrong oil??? Worn plates??? Additives??? Ideas???
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post #3 of 4 Old 08-30-2013 Thread Starter
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Re: Kanzaki tranny hiccup

Thanks for your interest.

Additional info: it is a mechanical "tranny"
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post #4 of 4 Old 08-30-2013
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Re: Kanzaki tranny hiccup

I had the same symptoms on my kbw10 Kanzaki/hurth. Not sure if this is the same trans as yours.

I'm afraid that on my case it was the early signs of death. I nursed it, changed oil frequently, and got about 2 years before it started slipping noticeably in gear.

The good news is that you prob have time. I used that time to find a good used unit. If you want new Twin Disc makes a bolt on replacement.
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