Yanmar - How long should it take for oil pressure to come up from a cold start?

This could be a little dumb, but if one of your problems is that the oil drains out of the filter because it is sitting upside-down, wouldn't the easiest way to solve this problem be to make an adapter so your filter is sitting the other way around?
I tried to look at Yanmar websites, but couldn't find a good picture of where the oil filter is situated, but if it's not to tight in your engine-room it should be possible.
Regarding your vibration, I found that Yanmar claims the 6LP has "Low noise & vibration". They doesn't say Low noise & LOW vibration. ;-)

Best Regards,

Ken

 

we need be a bit careful here, yanmar and the yanmar commercial as in ships, may be 2 diff entities, for instance there are lo speed yanmars that run 20 years in tuna longliners, non stop 500rpm engines
they are simpply great old plodders

 

If frostys problem is the upside down oil filter I dont understand why he does not fit a remote filter kit .checked on google and no problem getting one after all the man is not stupid ...or is it that he wants the makers to fix it ??


Stay cool but not frosty ....ha ha

 

---thanks for that Wally I am making a luber but a bit more professional that that.

Yes folks a remote filter kit would lessen the oil prime time but not eliminate it. Its always my thing that if Im going to do a job then do it properly and make it work well.

The oil filter spigot is over 60mm long, it has a special 2 stage filter that separates internally and returns super clean oil to the sump whilst normally clean oil goes into the gallery. The filter itself is expensive and heavy , it has an o ring inside that fits on the spigot to separate the two oils.

As previously mentioned I have already drilled a 1/4 BSP into the intake gallery of the filter meaning the filter will clean the pre lube pump oil as per the Yanmar specifications. The pump I can buy and will pump to 1 bar. The feed will be from a double banjo on the dip stick on the sump.

A none return valve will be fitted in the system.

To make a remote kit would not be easy,-- to buy is impossible as it is 24x1.5,--you wont get one and not to fit this spigot.

The remote kit would lessen the time but the pre lube will do that and pre lube and post lube if I should so want , It will also prime new filters and remove old oil. It would enhance value to the boat for having a proper lube system.

I will probably fit a small 1/4 cock in the line so that if I should go out for some serious distance driving I could isolate the whole system.

I am looking forward to starting the engines without ever hearing the alarms

 

Hey,-- a question for yer.

A small deisel fuel transfer pump, vane type, 12 volt is what I have chosen to pump 2 liters of clean oil into the filter and prime to 1 bar which the pump manufacturers say it is capable of when pumping fuel.

The supplier says no way can I use this pump to pump lube oil!!!!!

I said --but its only going to run for 15 seconds and only prime a filter to 1 bar.

They said,-- well another customer tried it on lube oil and damaged the vanes ,--we will not guarantee the pump for this use.

I said yeah but if you put dirty water with grit in it is will damage the vanes but this is clean SAE 30 lube oil and will be for a 15 second run only.

He said yeah ok I will sell you the pump but it is not the right pump and I will not give guarantee.


Question. I think he is a dick head and doe'snt know what he is doing but hey thats me. Dont you?

I can not get another pump in 12 --I have tried. Piusi by pass 2000, made in Italy and a very well respected pump. They will not reply to my question only giving me the Malaysian contact.

What say you respected engineers out there?

 

Hi Frosty,

Vein pumps are not the right thing to pump oil with. The veins can slide in and out by centrifugal force, most of them specifically indates 'do NOT lubricate'. You won't be able to pump oil with it properly. I will also sell you the pump without the guarantee

Look for a gear oil pump instead. While they have lower volume pump capabilities they can give the pressure easily and they have positive displacement capability, meaning if the pump turns oil comes out and at pressure if required, you don't have to wonder about it. You may even pick one up at the car spares shop.

 

Frosy: I imagine it's not a question of material compatibility - if it is OK for diesel it is hard to imagine what damage oil would do. Perhaps the greater back pressure of the oil is a problem, due to its greater viscosity. Is it possible to just reduce the motor power or revs to deal with that? Also, if you can speak to the customer who already tried it ...

I assume you have tried to buy the right pump for the job.

 

LOL, I'm not an engineer, more of a field man myself. But my first thoughts are that the problem with lube oil vs. diesel fuel would be viscosity. Given the nature of diesel fuel in cold weather I would think any lift pump capable of moving diesel when it's chilly out can handle 30 wieght for short runs especially in warmer weather.

My opinion,, worth .02!

 

The guy is a dick head for the right reasons

We have respected engineers on this web site

 

I grew up on a large farm/ranch,where things are bodged together and used for wildly different things.

How about a low pressure 12 volt hydraulic pump?
Install a check valve etc etc.

Check the lowrider forums.


Or an oil transfer pump?

Stuff is out there......

 

what 12V hydraulic pump do you suggest? Ive racked my brains thinking of an outomotive application.


Yes the vanes throw out with centrifugal force thats how it works.

I understand it will be loaded and will not possibly displace the same amount as it would pumping diesel but all it has to do is pump 2 liters of SAE 30 in 31 degrees?-- Thats not thick oil.

Sorry but if you don't think it will pump 2 liters of SAE 30 in 15 seconds, yet pump 40 of deisel in 0ne minute,--- please explain.

I have seen nothing on Ebay even thought it could not be posted to me here. If I knew of a use of one I could find the shop or supplier to that use.

 

FYI I'm nowhere near an expert..but have built a few woodsplitters and repaired some equipment 'back on the farm"

There are reducers and a check valves available.
Many small hyd. pumps used for wheelchair lifts,custom car stuff,RV levellers etc and many 12v oil movers around that should get you 1 bar.

But I think this is what you need..for cooling trannnys on racing cars..can handle heat.

Shouldn't be more than $200 USD..ask them if they have a reducer...if this helps u owe me a beer.

Never really read this thread...sorry but could have helped you a while back

http://www.tiltonracing.com/content.php?page=list2&id=222&m=d

 

12V oil pumps are sold for auto use, for changing sump oil. Not sure if you can get them in Thailand, but you shoould be able to order one over the Internet. Canadian Tire have one http://www.canadiantire.ca/AST/brow...gAccessories/PRD~0799008P/Oil+Changer+12V.jsp cdn$40, no doubt cheaper ones from US sources

 

That Tilton pump is just what I need.

Oil changers? ive considered that but I dont think they offer much in pressure but I dont know for sure,--they don't print specifications like pressure delivery on a simple oil changer. Cant be much for 39 dollars.

Can get brass one way valves 1/2 inch here for water,--plumbing,----- Iether a flapper type or a sprung valve, cant make my mind up which would be better. Lovely machined and screw apart,--2 dollars!!!!

Thinking I might re attach the bridge guages to the intended oil galley, meaning bridge guages will read pre oil filter pressure, would be interesting!!

 

Doubt oil changer pump would give more than a few psi.

Myself,I'd put in a spring check valve even if it's rated to handle heat and pressure.

And if you want to get all trick, put in a pressure sensor that trips at a set point.Then rig in a relay so the starter won't turn over until pre lube hits your point. And theres other things u can do.

Of course you could easily bypass all this in case of an emergency start if the ex wife/girlfriend and/or police show up.


So does this mean I have to come to Thailand to collect my beer??