Notices

Merc 525 Oil Change

Thread Tools
 
Old 07-11-2006, 09:21 AM
  #11  
Registered
 
gsmith9898's Avatar
 
Join Date: Mar 2005
Location: tulsa, oklahoma
Posts: 1,892
Likes: 0
Received 1 Like on 1 Post
Default Re: Merc 525 Oil Change

I'll have to look again this week end. I looked for it last time I changed oil and never seen it. I wonder if they were on all of them or if the rigger had to do it.
gsmith9898 is offline  
Old 07-11-2006, 11:44 AM
  #12  
Registered
Thread Starter
 
Join Date: Aug 2003
Location: Charlotte, NC
Posts: 2,975
Received 12 Likes on 9 Posts
Default Re: Merc 525 Oil Change

Originally Posted by Dave M
On the 496's the hose is about 3 feet long. You can see it coming out of the pan in this picture. The other end stays clipped up near the intake. I guess you can clip it anywhere you want.
Dave,

What's on the end of the hose? What keeps oil from coming out if the hose were to fall on the bilge floor? Like i mentioned above the Ilmor has a -6 female str ftg w/ a plug in it.

Michael
NASCAT is offline  
Old 07-11-2006, 11:59 AM
  #13  
Platinum Member
Platinum Member
 
CigDaze's Avatar
 
Join Date: Jun 2001
Posts: 21,346
Likes: 0
Received 9 Likes on 9 Posts
Default Re: Merc 525 Oil Change

On my old boat, the hose was as described above and it had a threaded brass plug fitting at the end which capped it off. It was also wire-tied to the bilge drain plug which made it easy to pull out. The only problem was that it took over an hour for the oil to drain, even when it was hot.
CigDaze is offline  
Old 07-11-2006, 02:40 PM
  #14  
AKA NoMoBoatin
Platinum Member
 
Join Date: Jan 2003
Location: Can't remember.
Posts: 3,684
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Merc 525 Oil Change

Originally Posted by gsmith9898
I have the 525efi and I have not found the drain hose. How long is it and where do they tie it up?
It will probably be tie wrapped on the back of the motor where its very hard to get.Thats where mine was.Comes from merc that way.
docmanrich37 is offline  
Old 07-11-2006, 03:44 PM
  #15  
Registered
Thread Starter
 
Join Date: Aug 2003
Location: Charlotte, NC
Posts: 2,975
Received 12 Likes on 9 Posts
Default Re: Merc 525 Oil Change

Looks like I'm going to have to look at a 496, 496 HO & 525 in person in order to be sure what the fitting size & thread type is so that I can include the proper fittings.

I have an inexpensive & simple way to speed up your oil changes. I can drain the oil in my twin Ilmors (approx 5 gals) in less than 20 minutes from hook up to clean up.
NASCAT is offline  
Old 07-11-2006, 08:07 PM
  #16  
Gold Member
Gold Member
 
Dave M's Avatar
 
Join Date: Oct 2000
Location: Hollywood, MD, USA
Posts: 5,654
Received 123 Likes on 78 Posts
Default Re: Merc 525 Oil Change

Originally Posted by NASCAT
Dave,

What's on the end of the hose? What keeps oil from coming out if the hose were to fall on the bilge floor? Like i mentioned above the Ilmor has a -6 female str ftg w/ a plug in it.

Michael
It's a brass pipe plug, 9/16 if I recall.
Dave M is offline  
Old 07-11-2006, 08:09 PM
  #17  
Gold Member
Gold Member
 
Dave M's Avatar
 
Join Date: Oct 2000
Location: Hollywood, MD, USA
Posts: 5,654
Received 123 Likes on 78 Posts
Default Re: Merc 525 Oil Change

Originally Posted by CigDaze
On my old boat, the hose was as described above and it had a threaded brass plug fitting at the end which capped it off. It was also wire-tied to the bilge drain plug which made it easy to pull out. The only problem was that it took over an hour for the oil to drain, even when it was hot.
I've read about it taking a LONG time to drain but mine seems to drain pretty fast.
Dave M is offline  
Old 07-11-2006, 09:28 PM
  #18  
Registered
 
RJ1340's Avatar
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 525
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Merc 525 Oil Change

I didn't know there was a drain hose, been pumpin' it up the dipstick. where does the oil go when you drain it out the hose, into the bilge? that wouldn't be good. which is easier??
RJ1340 is offline  
Old 07-11-2006, 09:48 PM
  #19  
Platinum Member
Platinum Member
 
CigDaze's Avatar
 
Join Date: Jun 2001
Posts: 21,346
Likes: 0
Received 9 Likes on 9 Posts
Default Re: Merc 525 Oil Change

Originally Posted by RJ1340
I didn't know there was a drain hose, been pumpin' it up the dipstick. where does the oil go when you drain it out the hose, into the bilge? that wouldn't be good. which is easier??
It's about 3 feet long so you'd pull the hose out the bilge drain hole and drain it into a collection pan.
CigDaze is offline  
Old 07-11-2006, 09:54 PM
  #20  
Registered
Thread Starter
 
Join Date: Aug 2003
Location: Charlotte, NC
Posts: 2,975
Received 12 Likes on 9 Posts
Default Re: Merc 525 Oil Change

Originally Posted by Dave M
It's a brass pipe plug, 9/16 if I recall.
Dave is that 9/16 wrench size or pipe thread?
NASCAT is offline  


Quick Reply: Merc 525 Oil Change


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.