Rubber bits from the bell housing

[Glenn MacDonald]

This winter I installed a new transmission and drive plate and rear engine seal, all new parts that I got from you and were confirmed to be the right parts.  I have now driven the boat about 13 hours and have found pieces of rubber and rubber dust under the engine right under the hole in the bottom of the bell housing. Any ideas as to what might be going wrong?

Topic

[Tony Athens]

Premature Vulkan 1000 failures ??

Possible factory “defects” ??  The Vulkan 1000’s come direct to me from American Vulkan in Florida..  We make about two buys per year  ( 30-50 each time)

Take pics of the 1st unit, take it apart and document what you see..

Is the past. “Vulkan’s attitude” on  anything like this is:   “we can do no wrong” 

[Glenn MacDonald]

It’s happened again

Well , I installed the new torflex 1000 flex plate properly.  Took it out of the slip at low rpm , took the engine up to 1500 rpm slowly, traveling straight and it has failed again. Rubber coming out of the bell housing. Every 10 seconds A big  bump/shake out of the entire engine. So two have failed with minimal hours or strain. Shaft aligned correctly. New engine mounts on the back. Any suggestions as to what could be causing this?

[Glenn MacDonald]

Hi Tony;

Thanks for your response. I’m pretty sure I installed it right, and I sent you pictures of it installed because we had some questions as to if it was the right coupling and you didn’t respond with anything like ” you idiot, you put it on backwards!”

However, and I can’t believe this slipped my mind, but I did have an incident 2 weeks ago where a line got caught in my propeller and stalled out the engine, at low rpm. Could that have been enough to damage the coupling, and if so, do you think I need to replace it?

thanks Tony for all your help over the years

Glenn

[Tony Athens]

Glenn,   I found your notes–ZF220A & a Vulkan Torflex 1000 coupling.. That particular  coupling  is “more or less” the standard option your your engine & gear. But let’s be sure it was installed correctly–It can be installed “backwards” as stupid as that sounds.. They get a  C-minus in book as to how they mark their couplings

 

On the attached pics, ignore the freeze plus on the gold side-Your coupling  would not have that plug.    If it’s failing at such low hours and you installed it right, then this is a ZF QC issue.   

[Tony Athens]

What exact transmission, exact torsional coupling and what engine..   What happened to the old gear & coupling?  Any install pictures,  parts pictures,  etc?

[Author]

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