Re: Marine Lubrication
 

The Racing HP 6 flows like crazy and is built to take a ton of pressure...ever notice that on Merc racing engines...the "pro engines" there is a huge ring around the filter where it connects the engine that you can screw to tighten...wonder if any ever blew off or apart during a race?

Re: Marine Lubrication
 

I was wondering the same thing. New Powerboat came a week or so ago. Page 41 shows a quad rotor 1500hp Sterling. There's a stainless steel band around the HP-6 near its base. I mentioned it to Strip (Rob) a week or so ago. Lou

Re: Marine Lubrication
 

I just got of the phone with Wix on the fuel pressure filter/water seperatos .There burst presure was 280psi..The fuel presure housing is thiner than the oil filters.




I would not think that the clamp would be for keeping the filter from expanding.

Rob

also once on a new motor the oil pump bypass valve stuck .Priming the motor before bust off the oil pressure when out of site all it did was blow the rubber gasket .it pushed out and spewed oil everywere. But the filter didnt burst.But it was a short burst because it stopped a 1hp drill

Re: Marine Lubrication
 

the hose clamp is to keep it from loosening with vibration. there is a stop built into the mount. we safety wire anything else and the k&n makes easier work of it.

Re: Marine Lubrication
 

Something simple :D

Joe ya never got back to me on that pm I sent ya on the imco's?

Re: Marine Lubrication
 

i know....jeff keeps going back and fourth on what he wants...we had yet another change in plans,,,i'll get back w/ya next week. sorry again!

Re: Marine Lubrication
 

Is Mobil 1 SCH 75w90 the same as Mobil 1 SAE 75w90 with a API service GL-5? Thanks for any replies.

Re: Marine Lubrication
 

fyi..Mobilube PTX is not sold in th US - except by Porsche dealers at a 5X markup.

Mobil's Specs:
Mobilube PTX (synthetic) 75W-90 GL-4, GL-5
Mobilube 1 SCH (synthetic) 75W-90 GL-5,PG-1,PG-2

The LS 75W-90W; GL-5 that is on most auto store shelves around here..http://www.mobil.com/USA-English/Lub..._LS_75W-90.asp

Are they all the same?..I am not sure..but if it's rated GL-5 it should not matter. We think Merc's HP is a semisyn between maybe a GL-4 but probably not a GL-5..just guessing...GL-5 is the highest "official" rating...and these ratings pertain to the load handling ability of the lube that relates to it's additive strength.

Re: Marine Lubrication
 

Is the Mobil 1 75W90- GL5 synthetic ok to use in a 1992 King Cobra cone clutch drive? My omc dealer said to use Mobil 1 SCH 75w90 synthetic but all that I can find is the Mobil 1 75w90-GL5 synthetic Thanks

Re: Marine Lubrication
 

I would not hesitate to use any Mobil-1 75w-90w GL-5 in your application. There is little difference between the formulations according to the company.

Re: Marine Lubrication
 

Remember it's no longer Mobil SHC 75w90 the gods have now changed it to "Delvac Synthetic Gear Oil 75w90" Once the SHC 75w90 is gone, it's GONE!!!

Re: Marine Lubrication
 

There is a little bit of formulation dif. that Hydro mentioned... The Mobil 1 is more for street use. It's been Mobilube SHC 75w90 till they recently changed the name to the Delvac series is more of a heavy duty application..

How do I know. We've been a Mobil distributor for over 28 years.

Re: Marine Lubrication
 

So how is Vandy 021 doing these days? :D

Re: Marine Lubrication
 

A GL-5 from company A should be the same as a GL-5 from company B. The difference comes in the treat rate of th LS (limitted slip) additive. The major difference between a GL-4 and a GL-5 is the percentage of the gear additive in the formula. 3.5% by weight (of the additive) for a GL-4, twice as much for G-5. Ken

Re: Marine Lubrication
 

Any idea of what is added for a limited slip set-up?

Re: Marine Lubrication
 

I have a stock 1992, 454 in a 23 ft boat. Most all of my running is around 3 to 4000 rpm,just up nice and cruising, getting on the throttle ocasionaly. The engine only has about 60 hrs on it [ original engine]. The 1992 factory book calls for straight 30 wt oil and that is what I have been running without any problems. Would there be a benefit to switching to a synthetic oil. If there would be a beneifit what oil and wt should I use? Thanks for any replies.

Re: Marine Lubrication
 

Just had surgery so I've been down. Anyway, the oil business is good. We have started out strong this year.. We are also awaiting a price increase on all finished lubes. I feel something coming........ :cool:

Re: Marine Lubrication
 

I would imagine it is a sort of friction modifier to prevent the cluth pack from chattering when going around corners. The L/S additive is in the GL-5 is at a very low percent, enough to get the finished lubricant to pass a "top off" spec. For "service and factory" spec you need to uptreat the L/S portion of the blend. Thats why a lot of oil companies sell the L/S additive seperatly. Ken

Re: Marine Lubrication
 

This thread seems to be stuck on mototcycle specfic oils for your boat........................the sad truth is, the motorcycle specfic product, ( not relabeled PCMO's (passenger car motor oils)) are probally the best lubricants you can use in your application. A good petroleum 20w50 motorcycle oil (Spectro 4 20w50) would work excellent in your application. At operating temps(210F oil temp) the 20w50 would offer more film strength than a straight 30, and give you the added benifit of easier engine cranking when cold as well as faster oil pressure when cold. If you start to run you big block harder, I honestly don't know how much harder, or for piece of mind you may want to go to a syn/pet blend or perhaps a full synthetic. Both of the lattter are more money. More than worth the higher price if you leave the oil in for long periods of time. Once again I don,t know what is considered a long time with todays modern synthetics. Only an oil analysis can tell when the oil is "spent".
Find a product and a change interval that you and only you feel comfortable with. As I have stated before I use Spectro Golden 4 20w50, (a syn/pet blend) and change at 25 hours or every fall. At my next oil change I will change to Spectro's new viscosity 15w50 for reasons stated above. Ken

Re: Marine Lubrication
 

A lot of ppl have been hating on the Mobil 1 EP 15w50. It's still a good oil for boaters who aren't out beating the sh!t out of their engines...

Re: Marine Lubrication
 

Whoa how I can predict the future... 40 cents on conventional and 60 on synthetics on March 1st.. Who the f***k saw that one coming.. :mad:

Re: Marine Lubrication
 

Speaking of the Mobil 1 15w50, does it still have the same amount of ZDDP? And if so, how? Its labeled as automoive and word has it the government/oems forced reductions of ZDDP in auto oils to solve catalytic converter problems.
Thanks

Re: Marine Lubrication
 

I'd have to check with my Mobil Rep.

When the brain surgeons brought out the EP. They marketed it as having 36% more anti-wear additives which is ZDDP
37% more cleaning agents
50% more SuperSyn

This was compared to Mobil 1... Now Mobil 1 was full of the stuff already. Maybe another wrench head could answer it quicker than I?

Re: Marine Lubrication
 

My take is that the increased anti-wear and detergency additives now present in the current M-1 15W-50 EP formulation offer two distinct advantages over the previous formulation:

- The first being it offers the ability to go for extended periods in automobiles while keeping "wear" at a minimum and the engine clean and particles dispersed for out to 12,000 miles and is safe to do so if using a good oil filter.

-The second being it offers more anti-wear properties for marine use along with better detergency than the previous formualtion and can probably be extended to the maximum recommended drain interval of up to 50 hours....certainly 30-40 hours is reasonable I would gather from tests I have seen...in stock; non- hopped up or non-blower applications.

While not having as much ZDDP as V-twin it is a good choice for general offshore use; for racing; hopped up or blown engines I'd go with 20W-50 V-Twin and would change it more frequently because of the potential for gas contamination into the oil.

Re: Marine Lubrication
 

EP additives in a GL5 formulation are mostly a sulfer or chlorine base additive. Ever smell a GL5 product? It smells nothing like an engine oil which has ZDDP.The smell is the hypoid additive package sulfer & chlorine, which will offer a lot more protection than ZDDP. Ken

Re: Marine Lubrication
 

Is that 40 cents each on finished lube in quarts or gallons? How about bulk pricing?

Re: Marine Lubrication
 

Sulfur or Phosphorous; Molybedium or Antimony or any other sacrificial "soft metal".

When the oil is "squeezed" away the sacrificial lubricant qualities of these agents protects against wear and they are destroyed in small amounts instead of the gears.

Mercury HP... lots of antimony...excellent but be ware that it is a poison like lead.

Redline... tons of sulfur.

Royal Purple...lots of moly

Mobil-1.. Phosphorous and moly.. I believe

Amsoil ...not sure what the new formualtion has in it.

Re: Marine Lubrication
 

EP additive.............a lubricant additive that prevents sliding metal surfaces from seizing under conditions of extreme pressure(EP). At the high local temps associated with metal-to-metal contact, an EP additive combines chemically with the metal to form a surface film that prevents the welding of opposing asperities(small metal projections on the surface left from machining), and the consequent scoring that is destructive to sliding surfaces under high loads.Reactive coumpounds of sulfur, chlorine, or phosphorus are use to form these inorganic films. If moly is being used the oil would be black when new, never heard of antimony being used. Ken

Re: Marine Lubrication
 

Well Royal Purple dyes it's product purple or it would be blackish as Redline is.

The Mercury HP shows a caution on its's bottle about how poisonous Antimony is...or at least it used to...and I read that Antimony is an EP.

Who uses chlorine except the additives with Teflon that don't work?

Re: Marine Lubrication
 

The new Amsoil 20W-50 MCV looks to contain Phos and Zinc along with a little moly but I am not sure of the actual form of Moly.

The other thing I would like to mention is I believe I see some confusion growing here on the last few posts. Please do not confuse Mobil 1 EP with "EP" as in Extreme Pressure additives. M1 EP will not have "EP" in it. "EP" is contained in gear lubes not motor oils.

By the way the new Amsoil Motorcycle 20W-50 oil will be going up in price Feb 1. About $.35 per qt at dealer cost.

Ken

Re: Marine Lubrication
 

M-1 EP = Extended Performance...as in extended drains...but they do have more ZDDP to achieve that and the components of ZDDP are EP lubes...confused yet? :drink:

Re: Marine Lubrication
 

Amsoil Marine Synthetic Lube has shown good results last season. I like the "seal conditioners" they use specific to outdrive seal materials that help prevent leaks and water damage. It is thinner and that means it can shead heat faster and better and also the lower viscosity means less paracitic loss.

It is the one to beat in my humble opinion.

Re: Marine Lubrication
 

Some of the engine oil additive manufactures ie;Duralube, used a chlorinated paraffin additve in their product to claim EP. Ken

Re: Marine Lubrication
 

Chlorinated paraffin’s:

They show how their oil will perform in a pressure test that has a torque wrench that puts pressure on a bearing and a round but rough surface that is turning in the test oil. They show how by adding their oil the wear is greatly reduced. This can be done with household bleach but you would not want to put any of that in your engine because it’s corrosive. The Chlorinated paraffin’s are also corrosive to the light metals in your engine. The lead in your engine bearings is subject to corrosion or acids that can build up. When the chlorinated paraffin’s come in contact with moisture or water of any kind they turn into hydrochloric acid and can become acidic to the lead in your bearings. So the reduction in wear shown by the torque wrench test is only one realm of wear that goes on inside your engine. Acidic or corrosion wear is another type and that is why I would never use an additive containing any type of chlorinated product.

Re: Marine Lubrication
 

Do not use any oil additive that claims EP protection in a engine for reasons stated above. They should only be used in a application that is sealed, ie;a differential, transmission, transfer case etc. But if you are using a quality product, you shouldn't have to additize the lubricant with an additive. The blender should have done that for you. All lubricating oils are a balanced chemical formula, by adding an aftermarket additve you no longer have a balanced formula and could be doing more harm than good, like adding an EP product to you engine oil. Sure it looks good when demonstrated with the Falex Bearing Tester, but in the real world it not the best application. Ken

Re: Marine Lubrication
 

Some you have lost it.. EP with the Mobil 1 is for extended performance not Extreme Pressure as they put in Industrial Gear Oils. The EP package put in those "Industrial" oils is for the shock load that is put on the gears. No one in their right mind would put in EP additive in a motor oil. And yes, there are some EP's put into closed systems as stated in there above.

Regards

Re: Marine Lubrication
 

Phosphorous and Zinc are both potentially used as extreme pressure additives and are present in lubes and as anti-wear additives in oil...it all depends on the molecular form and content %. :drink:

Best regards!

Re: Marine Lubrication
 

Kudos you sound like my ExxonMobil engineer. They aren't used though as a EP in auto world.

Re: Marine Lubrication
 

I was asked if too much ZDDP is bad...

Answer...usually not if the manufacturer added and tested it. If too much is added after manufacturing then it's possible to have too low a detergency ratio and the oil can sludge up.

Re: Marine Lubrication
 

A few asked me what I would suggest putting in their drive case this summer.

Well I decided that if a company deserves your business they should make a product specific to marine use.

So that's either Mercury Hp or Amsoil Marine Synthetic

...my money is on Amsoil Marine gear-lube this season as i have heard many stories of how it will not foam...handles water better than most and has "seal conditioners" other's may not...