Reply
 
Thread Tools Display Modes
 
Old 05-26-2013, 01:53 AM   #1
Senior Member
 
eagle419's Avatar
 
City: Sydney
Country: Australia
Join Date: Apr 2012
Posts: 214
Running Gear Tweaks

While the prop is off getting tweaked (as per Benn's suggestion) I decided to go with a PSS seal, rather than continuing with bilge yoga and packing tightening.
Attached Thumbnails
Click image for larger version

Name:	DSC02642 (800x451).jpg
Views:	78
Size:	47.2 KB
ID:	19704   Click image for larger version

Name:	DSC04442 (800x451).jpg
Views:	83
Size:	42.3 KB
ID:	19705   Click image for larger version

Name:	DSC04443 (800x451).jpg
Views:	77
Size:	52.1 KB
ID:	19706  
__________________
Advertisement

eagle419 is offline   Reply With Quote
Old 05-26-2013, 02:04 AM   #2
Senior Member
 
eagle419's Avatar
 
City: Sydney
Country: Australia
Join Date: Apr 2012
Posts: 214
Spurs

I've also got a new set of heavy duty rope spurs, which apparently will also chew through sizeable wire.
While I've got a hookah diving setup, I don't fancy being under the boat by myself.
Attached Thumbnails
Click image for larger version

Name:	DSC04433.jpg
Views:	70
Size:	82.4 KB
ID:	19707   Click image for larger version

Name:	IMG_3476[1].jpg
Views:	72
Size:	89.9 KB
ID:	19708  
__________________

eagle419 is offline   Reply With Quote
Old 05-26-2013, 02:29 AM   #3
Guru
 
Tidahapah's Avatar
 
City: Mooloolaba
Country: Australia
Vessel Name: Tidahapah
Vessel Model: Bert Ellis Timber motor cruiser
Join Date: Oct 2007
Posts: 1,779
John,
That's a serious set of cutters, would hate to get my fingers caught there.
By the way, what sort of tweaking did they do to the prop.
Any serious pitch increases etc.

I have previously looked at PSS shaft seals but have never ben convinced that they were a step forward.
We have oil type and lip seals at sea but they both seal inside and out so there is a back up of sorts and usually one can increase the oil head height to negate any water ingress in case of failure.
With the PSS seals there is no back up in case of failure and that does not sit well with me for off shore cruising.

I changed to Goretex packing which has been fantastic , nil drips and no heat. I have grease lubricated fwd and aft bearings on my shaft .

Hope it all goes well with the retuned prop.
Cheers
Benn
__________________
"When I die I hope my wife doesn't sell my toys for what I told her I paid for them"
Money: It's made round to go round , not flat to stack.
"Get out and do it"
Tidahapah is offline   Reply With Quote
Old 05-26-2013, 03:00 AM   #4
Senior Member
 
eagle419's Avatar
 
City: Sydney
Country: Australia
Join Date: Apr 2012
Posts: 214
Hello Benn,
We sent the prop along with the specs to Porters, and noted that we were only getting 8.1 @ WOT 1400 revs. They took some pitch out, filled a patch of corrosion and rebalanced. I now get 8.5 @WOT 1445 revs - an extra 45 rpm, but still not near spec - I'll have a peruse of their figures and think some more.
There are three large alternators and two hydraulic pumps running off the 6lxb, plus the stabiliser fin drag, so maybe that changes the scenario. I hear what you're saying re the seal!

BTW we also replaced corroded bearings in the stabilisers
Attached Thumbnails
Click image for larger version

Name:	DSC04364 (800x451).jpg
Views:	71
Size:	36.8 KB
ID:	19710   Click image for larger version

Name:	DSC04379 (800x451).jpg
Views:	72
Size:	71.4 KB
ID:	19711   Click image for larger version

Name:	DSC04389 (800x451).jpg
Views:	64
Size:	41.2 KB
ID:	19712   Click image for larger version

Name:	DSC04390 (800x451) (2) (800x451).jpg
Views:	68
Size:	52.3 KB
ID:	19713   Click image for larger version

Name:	DSC04386.jpg
Views:	66
Size:	126.5 KB
ID:	19714  

eagle419 is offline   Reply With Quote
Old 05-26-2013, 06:16 AM   #5
Guru
 
Tidahapah's Avatar
 
City: Mooloolaba
Country: Australia
Vessel Name: Tidahapah
Vessel Model: Bert Ellis Timber motor cruiser
Join Date: Oct 2007
Posts: 1,779
John,
have you wacked your figures thru boatdiesel to see what figures they come up with.
If you have not and you are not a member pm me your details, length, water line length , displacement, gear box ratio etc I will throw them thru and see what size prop they come up with.
Also give me the size of existing prop if you want.
Cheers
Benn
__________________
"When I die I hope my wife doesn't sell my toys for what I told her I paid for them"
Money: It's made round to go round , not flat to stack.
"Get out and do it"
Tidahapah is offline   Reply With Quote
Old 05-26-2013, 08:02 PM   #6
Senior Member
 
eagle419's Avatar
 
City: Sydney
Country: Australia
Join Date: Apr 2012
Posts: 214
Thanks Benn,
Porters the prop people put the numbers though their system to come up with the adjustment.
I'm waiting for them to send over their calculations and I'll copy them to you.
cheers, John
__________________

eagle419 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 06:48 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012