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04-12-2017, 07:59 PM
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#1
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Senior Member
City: Bradenton, FL
Vessel Name: OPTIMYSTIQUE
Vessel Model: Mariner 40
Join Date: Oct 2011
Posts: 119
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Servicing ZF transmission
I am in the process of servicing my boat before our trip from Florida to Tennessee.
I've changed the oil, filters and impeller on my Cummins QSB5.9 230 hp engine and also changed the transmission fluid in the ZF transmission.
I took the filter out to replace it and am unable to get it back in!
Does anyone have any suggestions as how to press it back in place?
I replaced the O rings and cannot get the filter assembly back in.
Thanks,
Wm Mayberry
OPTIMYSTIQUE
Mariner 40
Twin Dolphin Marina
Bradenton, FL
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04-12-2017, 11:34 PM
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#2
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Guru
City: League City, TX
Vessel Name: Pelago
Vessel Model: Wellcraft 3300 Coastal
Join Date: Aug 2011
Posts: 1,069
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I have ZF63A's and this is the procedure from my service manual. Do the old and new filters appear to be the same?
__________________
Larry
M/V Pelago
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04-13-2017, 05:26 AM
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#3
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TF Site Team
City: Seneca Lake NY
Vessel Name: Bacchus
Vessel Model: MS 34 HT Trawler
Join Date: Nov 2014
Posts: 7,826
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The filters are only a metal screen and cleanable.
Clean the old one and see if it fits OK.
As Larry noted do the comparison.
__________________
Don
2008 MS 34 HT Trawler
"Bacchus"
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04-13-2017, 05:46 AM
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#4
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Senior Member
City: Bradenton, FL
Vessel Name: OPTIMYSTIQUE
Vessel Model: Mariner 40
Join Date: Oct 2011
Posts: 119
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My problem is getting the top/cover back down into place.
It is supposed to just press back in while twisting counterclockwise.
I struggled for quit some time and finally gave up.
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04-13-2017, 05:50 AM
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#5
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Senior Member
City: Bradenton, FL
Vessel Name: OPTIMYSTIQUE
Vessel Model: Mariner 40
Join Date: Oct 2011
Posts: 119
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My problem is that I am unable to get the top/cover assembly (fig 4)back into the trans housing.
Is there some adjustment with the allen wrench?
Wm Mayberry
OPTIMYSTIQUE
Mariner 40
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04-13-2017, 05:53 AM
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#6
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Guru
Join Date: Oct 2007
Posts: 22,553
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Make sure ALL the old O rings are out.
At box stores they sell small containers an OZ or two of silicone lubricant for assembling plumbing fixtures.
Works better than just grease for assembling.,
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04-13-2017, 07:30 AM
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#7
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Allen head screw squishes oring. Put top cover in with screw loose, push it down firmly and while holding, snug screw. This squishes the oring and that holds it in place.
Filter is on suction side of pump, so there is no pressure there.
These things don't seem to fit that well, but do seem reliable.
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04-13-2017, 09:24 AM
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#8
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Senior Member
City: Bradenton, FL
Vessel Name: OPTIMYSTIQUE
Vessel Model: Mariner 40
Join Date: Oct 2011
Posts: 119
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I'll try loosening up the Allen screw.
Thanks
Wm
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04-14-2017, 06:15 AM
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#9
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Senior Member
City: Bradenton, FL
Vessel Name: OPTIMYSTIQUE
Vessel Model: Mariner 40
Join Date: Oct 2011
Posts: 119
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I was finally able to get the Allen screw loose and the cover just slipped back in place. The Allen screw was VERY tight and I had trouble getting it loose.
All is good now!
Wm
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04-14-2017, 07:22 AM
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#10
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Guru
City: LI or Fla
Join Date: Jul 2013
Posts: 1,148
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Good to hear it worked out and sharing your experience.
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04-25-2017, 08:11 PM
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#11
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Senior Member
City: Solomons Island, MD
Vessel Name: Heather Alyssa
Vessel Model: Mainship 350/390
Join Date: Mar 2017
Posts: 217
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This happened to me the day I took ownership of my boat. The allen head fastener in the middle of the cap was seized. I purchased a new cap assembly and spray that with WD-40 on a routine basis now.
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