Engine oil analysis reports for comparison and selection.

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Re: Engine oil analysis reports for comparison and selection

needing said:
The veracity of the actual number is moot.
The minimal variation between cylinders is the point.

If you are just going to make up numbers to support your discussion !!,
then this whole discussion is flawed, deeply....
 
Re: Engine oil analysis reports for comparison and selection

Combat 'experts' understand that unfiltered oil returns to the oil tank via the LH crank case breather circuit (same goes for aftermarket crank case breathers fitted).

You wanted compression data - you got it. When my engine is going, I wll post the new data using the same gauge.

I reject your reality and unequivocally state 'Responding to pointless comments is pointless!'
Ta.
 
Re: Engine oil analysis reports for comparison and selection

If you don't have good answers to good questions, then this discussion hasn't got much point...

Seems listers here have voted with their wallets...
 
Re: Engine oil analysis reports for comparison and selection

Rohan said:
If you don't have good answers to good questions, then this discussion hasn't got much point...

Seems listers here have voted with their wallets...

I am so sorry Rohan.
I did not provide clarity.
This comment was general in nature but also specifically intended for you to personally rise to the challange i.e. "...My challenge to you is to have your oil analysed when next you change it and post the results on this thread. Go on, I dare you! Put up...".
Ta.

Now patiently waiting for oil analysis to be posted... waiting... waiting...
 
Re: Engine oil analysis reports for comparison and selection

The point we made, right from the getgo, was WHERE IS THE BENEFIT TO THIS ?, especially from just a single analysis.
Its all very well to apply rocket science to dinosaurs, but unless there is some obvious advantage to us Commando owners....

Looking at a magnetic sump plug, cutting open the oil filter, and sniffing in the oil tank would have told the exact same things.
More immediately too.
 
Re: Engine oil analysis reports for comparison and selection

Hehe needing thanks for pestering Rohan and Rohan Needing. Needing how much did your analysis cost and how quick does results get reported? I may test Trixie when together again with just new rings nothing else on her 6-7000 mile engine to get idea of what new ring break in shows with everything else already run in, still pretty new, then a a few more to see if can even tell.
 
Re: Engine oil analysis reports for comparison and selection

Hi hobot.
The company I used is in Australia. http://www.roktex.com.au/
Their cost = AUD$39.
Postage = Reply paid envelope.
Results via email in 11 days (actual) from day of posting.
Ta.

Oh, I had no intention to pull the motor until I saw "...large ferrous particles...".
Then I could NOT not pull it apart.
 
Re: Engine oil analysis reports for comparison and selection

needing said:
Oh, I had no intention to pull the motor until I saw "...large ferrous particles...".
Then I could NOT not pull it apart.
Now that you have it apart, what is the source of the large ferrous particles, how large were they and what is your solution as it pertains to the large ferrous particles.
 
Re: Engine oil analysis reports for comparison and selection

Hi pete.v.
Refer to page 3.
Thu Apr 30, 2015 11:25 pm
Ta.
 
Re: Engine oil analysis reports for comparison and selection

All this seems to be a good argument for avoiding 'Combat' motors and sticking to the type with the large drain plug and wire mesh crankcase filter.

Greg
 
Re: Engine oil analysis reports for comparison and selection

Thanx for the AU pricing and turn around. Glad you will be investing in investigating this analysis for us but your 1st test did not reveal the source of steel which apparently was done shaving nor anything else ya did not know already, a well used engine needing a tune up and rings. It paid off in spades for you though - kind of by accident to find and fix a clogging Combat oil passage. Btw the baffle riser does not need removing as only goes to seam so oil can easy drain slosh past it. I just drilled drains through Peels for my love of extra holes. Every old decent running Commando engine should be gone through before trusting it, DAMHIK> If I had done analysis all it might of showed was more Alu than expected but who would worry about that, except in Trixie case it was alu gasket moshed into bores rubbing on oil comma slotted pistons till they parted after 3 wk timid use.
 
Re: Engine oil analysis reports for comparison and selection

As a Combat expert, why haven't you modified your sump pick up?

As a Combat expert, I am sure you know that this is the main reason that oil get pushed up the breather in the first place, allowing oil to pool to the rear and get sloshed up into the baffled area.

And, as a Combat expert, you realize now that removing the baffle and not modifying the sump pick up, that more oil is subject to be pushed up the breather.

I may not be a Combat expert, but it has been my opinion that oil being pushed up the breather through a reed will cause much more undue crankcase pressure than intended and of which we are primarily trying to relieve.

But i am sure, as a Combat expert, you have known this all along. And I am sure you know why this is more common, but not exclusive, to a Combat vs all 72 crankcases.

And why would you install studs where the only place for them to bottom out would be against a spinning crankshaft. ta,,,I mean, duh!

Being the author if this thread, it's not as easy to bail out as you have with other topics, is it? I will understand if that is what you need to do.
 
Re: Engine oil analysis reports for comparison and selection

pete.v said:
As [MY] Combat expert, why haven't you modified your sump pick up?
Just did!


As [MY] Combat expert, I am sure you know that this is the main reason that oil get pushed up the breather in the first place, allowing oil to pool to the rear and get sloshed up into the baffled area.
Sure do.

And, as [MY] Combat expert, you realize now that removing the baffle and not modifying the sump pick up, that more oil is subject to be pushed up the breather.
Sure do - now I have the best of both systems!


I may not be [MY] Combat expert, but it has been my opinion that oil being pushed up the breather through a reed will cause much more undue crankcase pressure than intended and of which we are primarily trying to relieve.
Correct, you are not the 'expert' of my bike and your comment is nonsense - reed valves have minimum resistance or 2 billion 2-strokes would not work (oh, my reed valve is the 4-petal type - not as cute, but more functional).

But i am sure, as [MY] Combat expert, you have known this all along. And I am sure you know why this is more common, but not exclusive, to a Combat vs all 72 crankcases.
The mesh sump filter would have stopped the salami'ed metal getting to the oil tank and I would still be in the ignorant bliss you appear to promote.

And why would you install studs where the only place for them to bottom out would be against a spinning crankshaft. ta,,,I mean, duh!
If you read the thread you would see that the problem was not detectable while the bike was upright. Plus the stud thread length was less but the waist actually allowed the threads to screw deeper than the setscrew threads.

Being the author if this thread, it's not as easy to bail out as you have with other topics, is it? I will understand if that is what you need to do.
Silly comment.

Now I have TWO other 'experts' on my bike!! Please tell me more about MY bike so I may better respond to your diatribe.
Ta.
 
Re: Engine oil analysis reports for comparison and selection

needing said:
Now I have TWO other 'experts' on my bike!! Please tell me more about MY bike so I may better respond to your diatribe.
Ta.

Condescending for sure, but Dietribe? As with this thread, you are again over the top.

Anyhow, my inclination is to say good luck with all that, but I feel you think you have that covered also.

Duh.
 
Re: Engine oil analysis reports for comparison and selection

LOL!!! One mans wisdom is anothers folly. Needing has pissed me off a number of times too with his attitude, and some I invite, but can't hold a grudge long as he's striving for his verison of perfection in Commando with brain teasing insights & mood dropping over sights so shrug it off as just normal family spatts with long distant relative. As I consider myself a Combat expert only, I though it was me being chidded at first. I've been able to pow wow with a number of famous builders so got to hear some of their history of learning curves they'd admit too - often rather worse than poor ole Neednesses. Interestly most the people kicked off other forums, NOC-UK, Brit Iron, INOA - have become about daily emialers to me and snail mail gift senders both ways too, except our past carbonofiber fella, who educated me on resin chemistry and booze. Needing please ping my pm on your Rubgoldburg vent system thread as I may have similar function with less plumbing for normal Cdos I'd like you and others to review. Peel's oil blow by air plumbing is another one in a row invention to review that I'm not sure I got pressure flow physics right.
 
Re: Engine oil analysis reports for comparison and selection

hobot said:
LOL!!! One mans wisdom is anothers folly. Needing has pissed me off a number of times too with his attitude, and some I invite, but can't hold a grudge long as he's striving for his verison of perfection in Commando with brain teasing insights & mood dropping over sights so shrug it off as just normal family spatts with long distant relative. As I consider myself a Combat expert only, I though it was me being chidded at first. I've been able to pow wow with a number of famous builders so got to hear some of their history of learning curves they'd admit too - often rather worse than poor ole Neednesses. Interestly most the people kicked off other forums, NOC-UK, Brit Iron, INOA - have become about daily emialers to me and snail mail gift senders both ways too, except our past carbonofiber fella, who educated me on resin chemistry and booze. Needing please ping my pm on your Rubgoldburg vent system thread as I may have similar function with less plumbing for normal Cdos I'd like you and others to review. Peel's oil blow by air plumbing is another one in a row invention to review that I'm not sure I got pressure flow physics right.

Yes, Steve, we all have our own version of the perfect commando, and perhaps some of us learned something from carbonfiber, and from Phil on testing our limits of patience. But what I gleam from the needy one is that just because the breather goes to the oil tank does not mean that it should nor should you promote oil return via this mode. He just seems to be the type of person that you would rather talk about him with others in front of his face than to talk to him directly.

Steve, you are a noble and mellow dude and as with Comnoz, looks past the crap. Me, I guess I'm more of a 61 year old adolescent. It is never too late to practice live and let live, to each his own and but for the grace of a higher power go I.

So, today it is surpassing 70 degrees and I will be taking a long run on my version of the perfect and completed Commando.
Ta Ta for now.
 
Re: Engine oil analysis reports for comparison and selection

Well there is a saying Life is a Bitch and then ya Die, so Nortondoom should be a relief not more turmoil than basic obsolete slippshod stop gap Commandos give us anyway. Phil Yates is in frequent contact with me in very friendly way updating me on the large scale investments of vintage restoring of all brands, even accquired a hi end exhaust shop to make up standard to custom systems for Nortons and others, with video of him zooming in front of his home and giving side car rides to 80+ yr old neighbor woman. Doug Twonsend, Tomato Man and others kicked off this or other forums are in constant contact via small private groups though never contacted carbon again. I quess I attract or seek out black sheep like. hobot can take it but does give me mood swings galore till reality moderates my mood. Theres like half dozen gear head lists I have dropped out of d/t bickering but the few worth while folks remain part of my extended family. So Needing and others -me just watch our words that ring and ring inside.

.
 
Re: Engine oil analysis reports for comparison and selection

Hi pete .v.
You admit condescending "i.e. having or showing an attitude of patronizing superiority" yet I perceived diatribe "a forceful and bitter verbal attack against someone or something". Such is life in the study of semantics.
Please, let us speak no more of this and get on with analysing the oils from the fleet of Commandos out there (owned by numerous people, subject to different environmental conditions and in varying states of tune and repair).
Ta.
 
Re: Engine oil analysis reports for comparison and selection

needing said:
Hi pete .v.
Please, let us speak no more of this and get on with analysing the oils from the fleet of Commandos out there.
Ta.

Ok, just one more question. We're into the sixth page of this thread and no real support for your little project. And your own oil analysis only seemed to show the results of poor workmanship and little, if nothing, to do with the normal wear and tear relating to our belived fleet.

So, here is the question, do you have any affiliation with this Roktex company? Just sayin, seems a bit fishy.
Back to you, oh relentless one.
 
Re: Engine oil analysis reports for comparison and selection

Hi pete.v.
Oh Troll. You win!

Re: roktex.
No. Re: Not selling stuff. Not buying guff.
Ta
 
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