Offshoreonly.com
Page 2 of 5
1
2
3
4
Last »
Show 40 post(s) from this thread on one page

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   525 EFI refresh lifter issue!!! (https://www.offshoreonly.com/forums/general-q/326543-525-efi-refresh-lifter-issue.html)

MILD THUNDER 09-24-2015 09:32 PM
Originally Posted by River Ratt (Post 4358508)
Had a fun successful summer with the boat, hopefully you did as well. My lifter noise went away like you said after letting it warm up a little, thanks. Then some lifter noise came back, I thought it was an small exhaust leak so I kind of ignored it, I couldn't hear it unless I opened the hatch and turned the tunes down. While winterizing I pulled my port valve cover to find a lifter that isn't pumped up solid, Im able to push the push rod down a tad (1/8" or less). My question is what oil do you run? I talked to Bob Madera this morning and he said the 25W40 I'm running is much to thick for these Johnson lifters and thats most likely my problem. I was just following the specs from the manual. Me and him also made a connection last spring, I believe he was working with you the same time I was ordering from him and calling him daily for questions, small world. I told him I'd call him back to go over everything again so I can work this out, he gets pretty technical so it may take a call or two lol
25w40 too thick? Thats a mercury spec'd oil grade.

I would remove the lifter assembly, and send it to johnson. Have you called johnson direct?

Full Force 09-24-2015 09:48 PM
I been running 20-50 in mine all summer no issues, I did have Johnson increase oiling to my rockers because I wanted to cover my azz in early spring conditions, Randy at Johnson was the guy that helped me out with my questions, very smart guy, I am almost positive he said 20-50 oil is fine even without increased oiling to rockers but I honestly can't remember. I run big clearances across the board so I need the thicker oil....

Black Baja 09-24-2015 09:57 PM
Originally Posted by River Ratt (Post 4358508)
Had a fun successful summer with the boat, hopefully you did as well. My lifter noise went away like you said after letting it warm up a little, thanks. Then some lifter noise came back, I thought it was an small exhaust leak so I kind of ignored it, I couldn't hear it unless I opened the hatch and turned the tunes down. While winterizing I pulled my port valve cover to find a lifter that isn't pumped up solid, Im able to push the push rod down a tad (1/8" or less). My question is what oil do you run? I talked to Bob Madera this morning and he said the 25W40 I'm running is much to thick for these Johnson lifters and thats most likely my problem. I was just following the specs from the manual. Me and him also made a connection last spring, I believe he was working with you the same time I was ordering from him and calling him daily for questions, small world. I told him I'd call him back to go over everything again so I can work this out, he gets pretty technical so it may take a call or two lol
Hydraulic lifters will lose their prime after they sit for awhile and will collapse if you try to compress them by hand. If you start the motor and run it a little it should pump right back up. If you run the motor and try to compress the lifter by hand again and it collapses you have a bad lifter. I've ran straight 40 even 50 with hydraulic lifters and never had an issue.

HyFive578 09-24-2015 10:00 PM
Originally Posted by River Ratt (Post 4358508)
Had a fun successful summer with the boat, hopefully you did as well. My lifter noise went away like you said after letting it warm up a little, thanks. Then some lifter noise came back, I thought it was an small exhaust leak so I kind of ignored it, I couldn't hear it unless I opened the hatch and turned the tunes down. While winterizing I pulled my port valve cover to find a lifter that isn't pumped up solid, Im able to push the push rod down a tad (1/8" or less). My question is what oil do you run? I talked to Bob Madera this morning and he said the 25W40 I'm running is much to thick for these Johnson lifters and thats most likely my problem. I was just following the specs from the manual. Me and him also made a connection last spring, I believe he was working with you the same time I was ordering from him and calling him daily for questions, small world. I told him I'd call him back to go over everything again so I can work this out, he gets pretty technical so it may take a call or two lol
Yes, great summer, thanks. Bob is a great guy... extremely knowledgeable and always willing to help. I had a collapsed lifter on one motor about a month or so ago, but that was most likely the result of too much spring pressure from the springs I used when I did the top ends in the spring. I will be changing the springs again this winter to a spring with less seat pressure. I used to use the Merc. Synthetic Blend 25W50 oil but I just started using Valvoline VR-1 Racing Conventional 20W50. Probably only have one or two more runs and then I'm done for the season. So sad..

Full Force 09-24-2015 10:17 PM
the johnsons will take a chitload of pressure, ask me how I know?? sure it's a spring pressure issue?

Originally Posted by HyFive578 (Post 4358532)
Yes, great summer, thanks. Bob is a great guy... extremely knowledgeable and always willing to help. I had a collapsed lifter on one motor about a month or so ago, but that was most likely the result of too much spring pressure from the springs I used when I did the top ends in the spring. I will be changing the springs again this winter to a spring with less seat pressure. I used to use the Merc. Synthetic Blend 25W50 oil but I just started using Valvoline VR-1 Racing Conventional 20W50. Probably only have one or two more runs and then I'm done for the season. So sad..

VoodooRob 09-25-2015 06:52 AM
Johnson lifters in my 525 refresh. Have right around 50 hours over 2 seasons, use 25W50 and no issues. Engines run great.

MILD THUNDER 09-25-2015 08:28 AM
Witnessed the same things happen to morels. Of course the oil viscosity was blamed to be the cause. Same thing happened again, with thinner oil.

I know several local guys running straight 50 oil in their Hi-RPM version of the morels, with no issues at all, although they say 5w40 is the max viscosity. And these arent 500hp engines , talking 1000hp engines in big heavy vee bottoms that get the snot ran out of them every weekend.

Having never used a johnson lifter, are they like a morel, in the aspect of being noisy too little preload? Every set of engines i been around with the morels seem noisy unless they have about a full turn on a 7/16-20 poly lock nut past zero lash.

Full Force 09-25-2015 08:30 AM
I run a half turn on my Johnson lifters I don't recall hearing any noise at all actually

MILD THUNDER 09-25-2015 08:32 AM
Originally Posted by Full Force (Post 4358619)
I run a half turn on my Johnson lifters I don't recall hearing any noise at all actually
Whats the plunger travel distance on a johnson? If i remember right, the morels have .143 of travel.

SB 09-25-2015 09:02 AM
Here's a very good article on hyd lifters, their components, and how it all works, including bleed down and etc:
http://www.enginebuildermag.com/2012...d-lifters-101/

Note: bottom picture is animated, give it a few to get moving. Provides a good visual.
http://img257.imagevenue.com/loc139/..._122_139lo.jpg
http://performancetrends.com/Definit...Lifter-Lrg.jpg
http://repairguide.autozone.com/znet...52800a7d99.gif
http://jeep.blackonyx.net/forum/lifters/sidebyside.jpg
http://holdenpaedia.oldholden.com/im...licLifters.gif


All times are GMT -5. The time now is 02:18 AM.
Page 2 of 5
1
2
3
4
Last »
Show 40 post(s) from this thread on one page


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.