Go Back  Offshoreonly.com > Technical > Do It Yourself, Boating on a Budget
Oil system 7.4 questions... >

Oil system 7.4 questions...

Notices

Oil system 7.4 questions...

Thread Tools
 
Old 06-27-2013, 11:29 AM
  #1  
Registered
Thread Starter
 
Join Date: Jun 2013
Location: Dallas, TX
Posts: 142
Received 12 Likes on 3 Posts
Default Oil system 7.4 questions...

I have had to piece together parts as I bought my boat engineless. I labeled a few pictures, Im lost to where any of this goes.
I know that I need an adapter but as of right now nothing is in boat and I would like to lable everything so I can install this weekend..
Thanks in Advance...
Gary









Dutchboy is offline  
Old 06-27-2013, 01:47 PM
  #2  
Registered
 
c_deezy's Avatar
 
Join Date: Aug 2006
Location: Ontario, OH
Posts: 2,465
Likes: 0
Received 0 Likes on 0 Posts
Default

oil_piping.pdf[ATTACH=CONFIG]503533[/ATTACH]

You'll have to use what you have to figure out how to package and install cleanly, but the attached files show the path.

13 and 14 could either be plugged, or put your oil pressure sender and oil temp sender there. You can also put your oil temp sender on the remote oil filter, which is what I prefer. Your pressure sender may already be up at the back of the intake, you'll have to look and see.
Attached Thumbnails Oil system 7.4 questions...-oil_piping.jpg  
c_deezy is offline  
Old 06-27-2013, 01:59 PM
  #3  
Registered
 
28Eliminator's Avatar
 
Join Date: Dec 2001
Location: Rapid City SD
Posts: 809
Likes: 0
Received 0 Likes on 0 Posts
Default

I will try to help. Look at the first diagram in the link I posted for the proper routing. The lines attached to your oil filter adapter don't look like the original ones, but the black hoses in 2nd picture appear to be the right ones. #1 & #4 connect to the Water hose from the sea water pump and out to the thermostat housing. I think the oil cooler is the type that mounts on the Bell housing on the rear of the motor, but not positive. The second link I posted looks somewhat like your setup, but the standard oil filter adaptor like in the first link would work also. 13 & 14 are normally plugged with just a brass NPT fromany hardware store.

https://www.mercruiserparts.com/Show...sp?dnbr=824418 93&ivar=IMAGES/COMMON/39685.png&inbr=1614&bnbr=280&bdesc=OIL+FILTER+AND+ ADAPTOR%28454%29
https://www.mercruiserparts.com/Show...ER+AND+ADAPTER
28Eliminator is offline  
Old 06-28-2013, 01:14 AM
  #4  
Registered
 
c_deezy's Avatar
 
Join Date: Aug 2006
Location: Ontario, OH
Posts: 2,465
Likes: 0
Received 0 Likes on 0 Posts
Default

I forgot earlier, but you should have an oil pressure alarm switch too, that could go in one of the holes for 13/14.



You also have two different sets of lines. You need the remote filter mount at the block like you said.

Based on the bends in what you have:

5 - Remote filter
6 - Filter adapter at block - Out of filter adapter

7 - Oil cooler
8 - Remote filter

9 - Oil Cooler
10 - Filter adapter at block - Looks like the IN

3 and 4 are in from sea water pump, out to engine.

Last edited by c_deezy; 06-28-2013 at 01:24 AM.
c_deezy is offline  
Old 07-04-2013, 01:08 PM
  #5  
Registered
Thread Starter
 
Join Date: Jun 2013
Location: Dallas, TX
Posts: 142
Received 12 Likes on 3 Posts
Default

sorry to be so late in response, but what I have read is that 13-14 cant be blocked off that oil wont flow through block unless those are looped? I have no experience with these engines.
Also I have read about the two check valves that are on block. One in the oil return and another one in either 13 or 14. What do I do with those? just leave them? change them?
Thanks in advance
Dutchboy is offline  
Old 07-04-2013, 01:23 PM
  #6  
Gold Member
Gold Member
 
vintage chromoly's Avatar
 
Join Date: Sep 2011
Location: cleveland ohio
Posts: 2,639
Received 16 Likes on 7 Posts
Default

13 and 14 are plugged on my 502.

That is a bellhousing mounted oil cooler.
vintage chromoly is offline  
Old 07-04-2013, 02:00 PM
  #7  
Registered
Thread Starter
 
Join Date: Jun 2013
Location: Dallas, TX
Posts: 142
Received 12 Likes on 3 Posts
Default

Ill plug them then.. then prime it to see what happens.
Also what do I do about the valve that's under where the filter adapter goes?
The block originally came out of a truck..
Dutchboy is offline  
Old 07-15-2013, 12:51 AM
  #8  
Registered
 
Join Date: Jul 2013
Location: Nelson, BC, Canada
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

Filter adapter for remote filter goes on in place of check valve and original filter mount. There should be a valve in the remote mount. Holes on bottom of block ahead of filter were for the truck oil cooler and should be blocked for marine application. Your cooler is routed inline with filter plumbing.
brianscathouse70 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.