Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 04-05-2023, 04:39   #16
Registered User
 
pcmm's Avatar

Join Date: May 2014
Location: Whitby, Canada
Boat: Morgan Out Island 41
Posts: 2,075
Images: 2
Re: Better way to change oil in 3gm30f?

Quote:
Originally Posted by gonesail View Post
i have a westerbeke as well and the oil pan drain hose is very nice. also the glow plugs are a huge improvement in cooler weather. not sure why yanmar overlooked this
Guess it depends on how "cold" your cooler weather is. I've never had a problem getting my Yanmars to start all the way down to 0c just advance the throttle a bit and it fires right up with no glow plugs. Funny though, the Yanmar engine panels have a "glow" position on the key switch.
pcmm is offline   Reply With Quote
Old 19-05-2023, 06:53   #17
Registered User
 
SailBobC's Avatar

Join Date: Feb 2012
Location: Aurora, Ontario, Canada
Boat: Tartan 3500
Posts: 27
Re: Better way to change oil in 3gm30f?

I use a 12v oil pump from Canadian Tire. Easier than a hand pump and smaller than the vacuum system but still a messy job and I am sure some oil remains.
SailBobC is offline   Reply With Quote
Old 19-05-2023, 07:13   #18
Registered User

Join Date: Aug 2013
Posts: 12
Re: Better way to change oil in 3gm30f?

I have been using a Pela 650 oil extractor (https://www.pelaproducts.com/description.htm) for more than 20 years. It extracts oil quickly and is very well built.
rbthorson is offline   Reply With Quote
Old 19-05-2023, 07:14   #19
Registered User

Join Date: Mar 2009
Location: Currently in Malaysia
Boat: Valiant Esprit 37
Posts: 231
Re: Better way to change oil in 3gm30f?

I have a 3JH3E Yanmar and I think I tried about every manual oil change pump known to man. They were all too slow and then you had to sotw the pump somewhere and when you went to use it, it would be covered in oil and they all made mess.

About 12 years ago, I purchased a 12v Oil/Diesel Scavenger Transfer pump. You can get the on Amazon for around $75. Not this exact model but looks just like it.

https://www.amazon.com/Impeller-Lubr...0-4513d670b6bc

I mounted it to the wall near the dipstick and wired it to an on-off-momentary toggle switch like those used on bilge pumps.

Rather than using a tiny hose to shove down the dip stick tube, I sized a hose that fit over the rim of the dip stick tube itself. In my case a 1/2" hose worked perfectly and provides an air tight seal without a hose clamp. The pump came with the proper 1/2" hose barbs. I connected another piece of hose to the discharge side, long enough to reach the container for the used oil. It sucks the oil out of the engine in less than 5 minutes. I found tight fitting plugs to cap the hose ends when I'm done. Coil them up around the pump and secure them to the wall and they're ready for the next oil change.

My engine holds 5 liters of oil and just sucking the oil out of the tube gets more than 4.5 liters out of the engine. The same amount I was usually getting with a hand pump. It's fast, easy, no storage space and no mess.
reflectionsv37 is offline   Reply With Quote
Old 19-05-2023, 07:42   #20
Registered User
 
Jon Hacking's Avatar

Join Date: Sep 2010
Location: Currently cruising the Philippines, just got back from PNG & Solomons
Boat: Wauquiez 45' (now 48') catamaran
Posts: 995
Images: 1
Send a message via Skype™ to Jon Hacking
Re: Better way to change oil in 3gm30f?

Yes, this is a monumental pain in the patootie. And any constant maintenance task should be made easier, or there's a natural urge to put it off. Even worse, it leaves a significant amount of oil still in the pan, & that's the heavy, gluggy oil with all the sediment in it. And trying to use the tube the dipstick fits into will be even worse, as it will leave even more oil in the pan.

On an earlier boat, we had an Isuzu engine. The previous owner had removed the engine for something, & while it was out he drilled & tapped a fitting in the lowest part of his oil-pan, & fitted a right-angle hose fitting, one with threads on one end (to go into the pan) & a hose-barb on the other, which went back to a brass hand-pump permanently mounted to the wall at the correct height for an old oil-container to fit under it.

It was extremely easy to use, with no mess, but you had to remember to keep an old oil-container around for your next change. It also got ALL of the oil out, every time.

Our 4JH2 Yanmars don't have enough room for me to extract the pans without removing the engines. But if I ever do get the engines (or just the pans) out, I'm going to put a similar setup on our engines.
__________________
-- Jon Hacking s/v Ocelot
Jon Hacking is offline   Reply With Quote
Old 19-05-2023, 07:51   #21
Marine Service Provider

Join Date: Feb 2008
Location: St Martin
Boat: FP Venezia 42
Posts: 35
Send a message via Skype™ to littleships
Re: Better way to change oil in 3gm30f?

Om any engine I jut remove the drain plug and put in a brass insert and a stop cock.... making sure the stop cock lever is oriented DOWN to be closed so there is not potential vibration issue to open the sea cock underway.
Attach a decent piece of hose long enough to be tied off above the engine.
I did this on my 100 turbo yanmar in 2000 and when I sold the boat in 2012 it was still working just fine.
I do it to any engine I have a relationship with and there have been many... haven't been caught short yet.
Another hack is if you have a saildrive ...is to install a header tank for sail drive oil and modify the orange top plug to accept a barb and a pipe.
Advantages are
1) no pressure build up in the sail drive wiht the potential to rupture the seals and
2) if a shaft seal does go it leaks microscopic amounts of oil out so you get a sheen on the water rather than you unknowlingly getting water into the said drive and destroying it.
Third hack to to remove that poxy brass petcock that masquerades as a raw water inlet on the sail drive, blank it off and fit a separate Christian sized through hull and a sea cock. so that when you actually NEED to shut that sea cock you can.
littleships is offline   Reply With Quote
Old 19-05-2023, 08:11   #22
Registered User

Join Date: Dec 2014
Location: SF Bay Area
Boat: Beneteau Oceanis 49
Posts: 58
Images: 2
Re: Better way to change oil in 3gm30f?

I use this to change my oil, transmission fluid, generator oil, and antifreeze. Pump it and walk away, pump it again and walk awayÖ.

Airpower America FloTool 5060TSMI Topsider Extractor Multi-Purpose Vacuum Oil Change Pump for 4-Cycle Engine, ATV, Boat, Large Vehicle https://a.co/d/2AxXL5Y

I run the engine a few minutes to warm (not hot), remove the oil fill cap, and slide the long hose down into the pan. When it is sucking air Iíll pull it up a bit, or push it down a bit, and I get most of the oil. Iíve adapted a few hoses, one fits on the engine coolant nipple, I remove the water/antifreeze filling cap, open the nipple and suck all the antifreeze out.

I carry the unit in a milk crate in the lazerette, hoses in baggies marked for use.

Iíve had the unit 15+ years, and changed fluids in many countries!
Bluechart is offline   Reply With Quote
Old 19-05-2023, 09:44   #23
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 919
Re: Better way to change oil in 3gm30f?

Quote:
Originally Posted by Jon Hacking View Post

On an earlier boat, we had an Isuzu engine. The previous owner had removed the engine for something, & while it was out he drilled & tapped a fitting in the lowest part of his oil-pan, & fitted a right-angle hose fitting, one with threads on one end (to go into the pan) & a hose-barb on the other, which went back to a brass hand-pump permanently mounted to the wall at the correct height for an old oil-container to fit under it.
That's pretty much how Beta engines are rigged. A drain plumbed to a built in hand pump. But I believe they have a valve before the hose that you have open first. Without a valve, if the hose comes off the barb out otherwise fails you lose all the oil. And the hose would be full of hot oil all the time which could be a problem, you'd have to use a hose compatible with that.
capt jgw is offline   Reply With Quote
Old 19-05-2023, 10:01   #24
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 919
Re: Better way to change oil in 3gm30f?

One of my previous boats had a drain plug in the oil pan and just barely enough room to get a drain pan under it. But not enough room to get the full pan back out. So I used my vacuum extractor to get most of the oil out through the dipstick tube then opened the drain. When the last of the oil was out I'd use the extractor to suck the oil out of the drain pan. Kind of a two step operation. If I was changing fuel filters too, I'd suck the fuel out of those last. Did a nice job of cleaning the black goo out of the hoses.
One nice thing about the vacuum extractors is they hold the used oil so you can pour it back into the new oil jug when you're done. No need to keep an empty jug onboard.
capt jgw is offline   Reply With Quote
Old 19-05-2023, 16:16   #25
Registered User

Join Date: Aug 2018
Location: Michigan
Boat: Catalina 30
Posts: 50
Re: Better way to change oil in 3gm30f?

In my Catalina 30 there is no room for a drain pan under my M25. I've been using a hand pump and it wears me out even after warming the engine. Next oil change Im going to use a 12 volt pump. I might try one of the $30 chinese pumps.
__________________
Jerry
Catalina 30 Tall Rig
Lake Michigan
jerryf609 is offline   Reply With Quote
Old 22-05-2023, 06:51   #26
Registered User

Join Date: Sep 2020
Location: Seabrook, TX
Boat: Catalina 30
Posts: 351
Re: Better way to change oil in 3gm30f?

The engine oil definitely must be hot (warmed up) to flow., Learned this while frustratingly trying to change the oil in winter...

I actually do a "double change". I change out the oil. Run the engine for a bit, then change it again.

I do this since there is always a lot of residual oil that the suction tube cannot get. On the M25 Westerbeke / Universal on the Catalina 30 the engine is tilted downward on the transmission end where the suction tube cannot get to it.

Costs a little more for the extra oil, but I am only changing oil once a year.

Cheers
sinnerman is offline   Reply With Quote
Old 22-05-2023, 08:22   #27
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 919
Re: Better way to change oil in 3gm30f?

Quote:
Originally Posted by sinnerman View Post
The engine oil definitely must be hot (warmed up) to flow., Learned this while frustratingly trying to change the oil in winter...

I actually do a "double change". I change out the oil. Run the engine for a bit, then change it again.

I do this since there is always a lot of residual oil that the suction tube cannot get. On the M25 Westerbeke / Universal on the Catalina 30 the engine is tilted downward on the transmission end where the suction tube cannot get to it.

Costs a little more for the extra oil, but I am only changing oil once a year.

Cheers
My dad used to do that on his trucks back in the 60's. Filled them with 10wgt, ran a bit, then changed again with 30wgt. He was in the oil delivery business so the extra oil was almost free. He was really busy so didn't get time to do the changes as often as he should.
capt jgw is offline   Reply With Quote
Old 25-05-2023, 18:55   #28
Registered User
 
jsanton's Avatar

Join Date: Feb 2013
Location: Dana Point,CA
Boat: Hunter 356
Posts: 43
Re: Better way to change oil in 3gm30f?

Iíve got an important tip that my mechanic taught me.
#1 dipstick suction works great with warm oil. If itís a lot of work, something is wrong.
Buy the smaller vacuum pump, easier to stow.
And Donít add the risk created by adding a hole in the drain pan.
The tip. Add a little more oil than needed. The old oil is less dense than the new oil so it floats on top. Now use the siphon to skim off the top surface of the oil. Up comes the last of the old oil. Siphon until the oil level is top of dipstick.
jsanton is offline   Reply With Quote
Old 25-05-2023, 20:03   #29
Registered User

Join Date: Jan 2020
Location: EC
Boat: Cruising Catamaran
Posts: 637
Re: Better way to change oil in 3gm30f?

Last year we bought the rather expensive Jabsco electric oil extractor after years of battling with manual systems. It is clean, and quick and oil goes into the waste container directly. We have a multi-hull so there are 3 engine changes including the generator and even 4 stroke outboard. To clean it all up just suck some Dawn through the system. I think it can also be used to empty a diesel tank, but not gasoline.
Tin Tin is offline   Reply With Quote
Reply

Tags
3gm, 3gm30, oil

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
ATF change on hydraulic transmission: is there a better way? S/V Alchemy Engines and Propulsion Systems 17 22-07-2017 10:58
Volvo Penta md2040D - oil change / oil type? kjames Engines and Propulsion Systems 5 06-12-2012 03:05
4-108 Oil Pressure Drop After Oil Change. phorvati Engines and Propulsion Systems 50 07-10-2012 02:43
Oil change causes oil pressure change. theonecalledtom Engines and Propulsion Systems 9 16-06-2008 14:10

Advertise Here


All times are GMT -7. The time now is 00:47.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.