Jump to content
tamboril

Bell 206 MR Trans Filler Cap

Recommended Posts

FYI:  206 trans oil level,

I had a machine once that the sight glass would keep filling up and after telling an engineer about the problem

he was yelling "NO WAY! THAT'S IMPOSSIBLE!" so we drained it below the dot and sure enough after a test flight the sight glass

was again full on level ground. Engine oil down too. Now we were "both" convinced.

As it turned out, the problem was a bad seal in the freewheel unit that allowed oil to transfer from the engine to the transmission.

 

 

Share this post


Link to post
Share on other sites

That's a known problem from time to time.  The key trigger to note is the engine oil level dropping and the transmission oil level increasing.

Share this post


Link to post
Share on other sites
12 hours ago, wcobra said:

That's a known problem from time to time.  The key trigger to note is the engine oil level dropping and the transmission oil level increasing.

As mentioned...this is a common problem. It can go both ways which is no big deal if you want to drain and add oil until you get the double lip seals fixed in the gearbox...206 use the same oil in trany and engine...this will also happen in a 407 which is a bigger problem as the oils are different.

Share this post


Link to post
Share on other sites
9 hours ago, DGP said:

As mentioned...this is a common problem. It can go both ways which is no big deal if you want to drain and add oil until you get the double lip seals fixed in the gearbox...206 use the same oil in trany and engine...this will also happen in a 407 which is a bigger problem as the oils are different.

You can use different oils in the 206 series I believe, always double check the type and brand before adding.  Mixing is bad. 

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...