Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
How many hours are to many on a 496? >

How many hours are to many on a 496?

Notices

How many hours are to many on a 496?

Old 09-02-2015, 03:18 PM
  #31  
Registered
 
Join Date: Mar 2013
Location: Granger, Indiana
Posts: 1,099
Received 10 Likes on 6 Posts
Default

Originally Posted by Quinlan
Over 1100 hrs on my old Outlaw 2000 454 mag mpi's- Never opened

Now the Interior is a different story - Richard???
With this many hours on your 454's can you share with everyone what typically you do for maintenance - type/brand of oil, filter, fuel treatment(s) etc.

I have a 2000 7.4 MPI (non-MAG) and I would like to get every hour out of the engine as possible. I don't beat the snot out of it -- but it does get used (fresh water). I'm anal about the maintenance -- for example the flame arrestor gets washed out every two tank fills.

Your experience would be greatly appreciated.

Thanks

3pointstar
3pointstar is offline  
Old 09-02-2015, 04:50 PM
  #32  
VIP Member
VIP Member
 
Quinlan's Avatar
 
Join Date: Jul 2003
Location: Tulsa, GLOC
Posts: 4,112
Received 615 Likes on 284 Posts
Default

I bought the boat new in O1. I changed the oil every 25 hours and drive oil every 50 hours. I ran it pretty hard the first few years for sure.
I haven't had the boat for several years since I got the Gun but is went to a very good friend and then his brother that still has it.
As you can imagine when Rog got it he used the hell out of it also. Always fresh water. Always in my warehouse in winters so no need to winterize.
I am pretty sure it was Merc oil and filters all the time.
The Mags are different internals then MPIs I think.
Gimbals about every 300 hours.

Great motors
Quinlan is offline  
Old 09-02-2015, 05:34 PM
  #33  
Registered
 
thisistank's Avatar
 
Join Date: Aug 2001
Location: Channel Islands, So. Cal.
Posts: 13,782
Received 3,131 Likes on 1,015 Posts
Default

When it stops running.
thisistank is offline  
Old 09-02-2015, 06:20 PM
  #34  
Registered
 
Join Date: Nov 2006
Location: Tygart Lake, WV
Posts: 1,290
Received 122 Likes on 83 Posts
Default

My VR had 378 hrs scanned on the stock 496 HO. 162 hrs at idle to 1499, 73 hrs 1499-2499, can't remember the rest but only .8 hrs at anything over 4500rpms. 155psi cold compression on all cylinders. Other than a bad IAC last year, it has been a very reliable turn key setup.
Ryan00TJ is offline  
Old 09-02-2015, 08:41 PM
  #35  
Registered
 
Join Date: Jun 2010
Posts: 4,644
Received 797 Likes on 376 Posts
Default

Originally Posted by Knot 4 Me
Dry joint between riser and manifold so that cannot be a cause for reversion. I've not heard of water reversion being a problem with 496's.
When I was looking for a twin black motor boat...3 of them had 496's with reversion issues. Not sure if it's the cam, exhaust design, etc...but all of them need to be rebuilt.
1MOSES1 is offline  
Old 09-03-2015, 06:34 AM
  #36  
Registered
 
Join Date: Feb 2012
Location: westville, NJ
Posts: 4,031
Likes: 0
Received 10 Likes on 8 Posts
Default

engines are expensive. but not as expensive or hard to repair than the hull and interior. get them both surveyed and buy the better hull.
dereknkathy is offline  
Old 09-03-2015, 02:31 PM
  #37  
Registered
 
Knot 4 Me's Avatar
 
Join Date: Jun 2005
Location: Central IL
Posts: 8,373
Received 755 Likes on 407 Posts
Default

Originally Posted by 1MOSES1
When I was looking for a twin black motor boat...3 of them had 496's with reversion issues. Not sure if it's the cam, exhaust design, etc...but all of them need to be rebuilt.
My guess would be tailpipe angle. Some hulls required the riser extensions. With any engine, if you don't get the exhaust right they can revert.
Knot 4 Me is offline  
Old 09-03-2015, 03:12 PM
  #38  
Registered
 
Join Date: May 2006
Location: Huntsville, AL
Posts: 1,628
Likes: 0
Received 0 Likes on 0 Posts
Default

278 / 279 hours Hours on my twin 2002 496 Mags. over 85 was at idle before I got the boat.

Plugs where fouled, changed them and runs great. it does sut up my ass end though. way to rich.



we had a boat with a single carbed 454 Mag in a 260 over nighter searay , with over 1200 hours and still ran great.
mittens is offline  

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 On
Pingbacks are On
Refbacks are On


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.