Like Tree0Likes

Volvo Penta 305 swap to Mercruiser 350 MAG (MPI)

Reply
Old 02-12-2008, 12:29 PM
  #11
VIP Member
VIP Member
 
Join Date: Nov 2002
Location: ankeny,ia.
Posts: 3,449
Default

Quote:
Originally Posted by happy hours View Post
I have not ripped it apart yet but it sure looks like the OEM manifold is aluminum...am I smoking crack? I agree, I am in salt and no closed cooling so cast iron is what I am after.
The OEM intakes that are aluminum have a bronze lined water passage in the intake, to address the corrosion issue.
JaayTeee is offline  
Reply With Quote
Old 02-12-2008, 04:42 PM
  #12
Registered
Thread Starter
 
Join Date: Jan 2004
Location: Saint Petersburg Fl
My Boats: 1999 Chris Craft,
Posts: 1,565
Default

Not sure what cracked it, but it looks like it was run while cracked , you can see where it must have been dripping salt water on front of the complete motor, pulleys etc. have rust and back half of the motor super clean. Oil is clean, well oil is dirty but w/o any water. I guess since the liner was bronze that eliminates me trying to weld it up since I am in the salt.

I am going to buy a leak down tester but since I have to take the intake off anyhow, I might a well pull head and freshen those up and look at the walls. I might try to get a starter rigged up and see if it runs though before I yank the intake.

Quote:
Originally Posted by fund razor View Post
Suddenly I am wondering why the intake is cracked, and if it was run while it was cracked, and if there are other problems brewing in the cylinders because of a cracked intake.

Is it cracked in such a way as to allow water into the mix?
happy hours is offline  
Reply With Quote
Old 02-13-2008, 03:11 PM
  #13
Registered
 
fund razor's Avatar
 
Join Date: Mar 2004
My Boats: Apache 28 Brave
Posts: 8,170
Default

Sounds like it leaked out, rather than in. Can't miss the milkshake.
I am just curious because I did a similar project when I had a single. Previous owner (friend) did a bad winterization and it cost the block. I did a long block swap out and took the opportunity to change a couple of things because I had broken the magic "stock" setup.
Not a bad project and then when you are out on the water you sure know what you are looking at, since you had to transfer it all over. Good luck.
fund razor is offline  
Reply With Quote
Old 02-13-2008, 03:13 PM
  #14
Registered
 
fund razor's Avatar
 
Join Date: Mar 2004
My Boats: Apache 28 Brave
Posts: 8,170
Default

Has anybody suggested that you have the heads of the new block magnafluxed? Just curious. Saved me setting up a bad set once. They came from a compromised block and didn't pass.
fund razor is offline  
Reply With Quote
Old 02-13-2008, 09:03 PM
  #15
Registered
Thread Starter
 
Join Date: Jan 2004
Location: Saint Petersburg Fl
My Boats: 1999 Chris Craft,
Posts: 1,565
Default

Good idea, like I said I gotta pull the intake anyhow so I am planning pulling the heads off. Since oil looks clean if the heads are good I should be in OK shape.

Quote:
Originally Posted by fund razor View Post
Has anybody suggested that you have the heads of the new block magnafluxed? Just curious. Saved me setting up a bad set once. They came from a compromised block and didn't pass.
happy hours is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
brick1932
General Q & A
7
09-21-2007 09:07 AM
priceb
General Boating Discussion
3
05-15-2007 12:20 AM
woody1
General Q & A
16
02-22-2006 12:02 PM
revomaniac
General Q & A
6
02-22-2005 10:52 AM
justinVIP
General Q & A
17
11-18-2003 11:43 AM



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



All times are GMT -5. The time now is 12:17 PM.


Copyright 2011 OffShoreOnly. All rights reserved.