Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-09-2020, 09:59 PM   #1
Ensign
 
Join Date: Dec 2019
Posts: 9
Default hydraulic lifters 3.0 mercruser

Hi looking for information please on setting valves, I have rebuilt the cylinder head and replaced the hydraulic lifters. but I an getting conflicting information on do you set them with the buckets dry or when full of oil?, I believe its a grey area with boat mechanics thanks.
__________________

Pedro is offline   Reply With Quote
Old 05-09-2020, 11:24 PM   #2
Commander
 
jrsick's Avatar
 
Join Date: Oct 2011
Location: Chesapeake, VA
Posts: 484
Default

Interesting question Pedro. I replaced the head on my 2001 3.0 and did the standard "lash plus 3/4 turn." I did soak the lifters in oil and I assumed that setting the preload would push out oil as appropriate (having oil in the lifters would not affect preload adjustments). Of course, running the engine is when you determine if adjustment is correct. If you get valve clatter, and oil pressure is good, then you need to tighten another quarter turn. If engine runs rough, and has low vacuum, then you need to back off a quarter.
Did you have carb and intake manifold off also? If either not installed correctly then you could get low vacuum that may appear to be lifter problem.
Everything went fine with my head swap though. Good luck.
__________________

__________________
2006 Bayliner BR205
A1 Gen 2 1.47
5.0 carb engine
jrsick is offline   Reply With Quote
Old 05-10-2020, 01:41 AM   #3
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 7,768
Default

Under Documents of this site you will find Mercruiser manuals and the 3.0 one with all the information you need.
__________________
1997 2400 SCR
5.7 Vortec / Bravo 2
Mike
mmwjr is offline   Reply With Quote
Old 05-10-2020, 08:16 PM   #4
Ensign
 
Join Date: Dec 2019
Posts: 9
Default

Hi thanks for your reply I fitted new lifters dry, but going to turn engine over to fill buckets with oil, before setting refitted carburettor and manifold using new gaskets, so hopefully no leaks .
Pedro is offline   Reply With Quote
Old 05-10-2020, 08:21 PM   #5
Ensign
 
Join Date: Dec 2019
Posts: 9
Default

Hi thanks for your reply I have workshop manual, but no information regarding setting valves after fitting new buckets .ie. in the new state or oil filled. I am going for oil filled thanks.
Pedro is offline   Reply With Quote
Old 05-10-2020, 09:58 PM   #6
Commander
 
jrsick's Avatar
 
Join Date: Oct 2011
Location: Chesapeake, VA
Posts: 484
Default

Let us know how it works out for you Pedro. Hydraulic lifters are self-adjusting, so getting the lash close will give you good results.
__________________

__________________
2006 Bayliner BR205
A1 Gen 2 1.47
5.0 carb engine
jrsick is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 08:56 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.