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Old 27-12-2020, 15:21   #106
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Re: Deep fryer oil in diesel

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Originally Posted by Tonali99 View Post
I burn twice what you do. 2 litres at 7 kts. (about 3000 rpm.)
The original owner had a small little electric pump which failed. Looked everywhere to try and replace it. No luck there sadly.
It did remind me of the fuel boost on the Beechcraft.
So ... where did you get the electric pump? Hate to have a problem in a seaway or better (worse?)yet under a bridge.

Here is an example:https://www.ebay.com/itm/New-Gas-Die...QAAOSwq~Nf5V2Z
but I'm sure you can find more on Amazon if you want faster delivery.
I'd imagine O'Reillys or similar auto parts chain stores have them as well.
BTW you said " have a fifty for me" in an earlier post. Does that mean the same thing in the USA as it does here i.e. a 50 litre keg of beer?
Just curious.
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Old 27-12-2020, 15:39   #107
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Re: Deep fryer oil in diesel

Thanks, Compass 790, for an intriguing thread.

And, hi, guys, to the rest of you.

Ann
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Old 27-12-2020, 16:42   #108
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Re: Deep fryer oil in diesel

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......
BTW you said " have a fifty for me" in an earlier post. Does that mean the same thing in the USA as it does here i.e. a 50 litre keg of beer?
Just curious.
I wondered too but I assumed (perhaps incorrectly) it was a typo and it should have read 'a fifth' meaning a small bottle of rum etc.
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Old 27-12-2020, 16:44   #109
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Re: Deep fryer oil in diesel

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Originally Posted by JPA Cate View Post
Thanks, Compass 790, for an intriguing thread.

And, hi, guys, to the rest of you.

Ann
And hi back - and I see you have changed your footer -
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Old 27-12-2020, 16:47   #110
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Re: Deep fryer oil in diesel

Beers at the ready? An addition to the conversation.
Straight bio-diesel had gone into one of our work vans, small Renault engine, common fuel rail. It ran and pulled fine but after some running it would be difficult to start. Check the glow plugs a couple had blown, on one occasion three. I found out that the glow plugs were controlled by the engine management (ecu). I didn't get the chance to experiment with different fuel mixtures and I was wanting to rig something up to monitor the glowplug usage but didn't manage to. The glow plugs were checked again then the van was put back on pump diesel.
My thought and question:
Was the bio-diesel firing differently, in effect putting the timing v slightly out, causing the ecu to switch on the glowplugs?
Could a very slightly retarded firing given your engine the performance boost?
Enjoy the beer.
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Old 27-12-2020, 17:06   #111
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Re: Deep fryer oil in diesel

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I wondered too but I assumed (perhaps incorrectly) it was a typo and it should have read 'a fifth' meaning a small bottle of rum etc.

Yea Wottie, I think you've got it, maybe my guess was wishful thinking....
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Old 27-12-2020, 17:16   #112
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Re: Deep fryer oil in diesel

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Originally Posted by JPA Cate View Post
Thanks, Compass 790, for an intriguing thread.

And, hi, guys, to the rest of you.

Ann

You are most welcome.
I just threw the oil on the fire & the hive buzzed to life.

Learnt a lot & helped clarify my thoughts.
Think performance increase is down to chemistry & not lubricity.
In a way it doesnt matter as I'm glad to have more power & can put off prop re-pitching longer.
But I still will try & work out the why.
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Old 27-12-2020, 17:37   #113
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Re: Deep fryer oil in diesel

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Originally Posted by Algee View Post
Beers at the ready? An addition to the conversation.
Straight bio-diesel had gone into one of our work vans, small Renault engine, common fuel rail. It ran and pulled fine but after some running it would be difficult to start. Check the glow plugs a couple had blown, on one occasion three. I found out that the glow plugs were controlled by the engine management (ecu). I didn't get the chance to experiment with different fuel mixtures and I was wanting to rig something up to monitor the glowplug usage but didn't manage to. The glow plugs were checked again then the van was put back on pump diesel.
My thought and question:
Was the bio-diesel firing differently, in effect putting the timing v slightly out, causing the ecu to switch on the glowplugs?
Could a very slightly retarded firing given your engine the performance boost?
Enjoy the beer.

Thanks, you might drive me to drink again!
Upthread it explains our engine is a 1980 non-ecu mechanical injection type.
I do not know of any reason the timing would change.

Guess the diesel could have a different burn rate than the WVO.
A few degrees retardation on the timing made no noticeable difference running on straight diesel. Another interesting thing is the Yanmar yse8 ( earlier model) which only differs in the style of injection pump for the purpose of this discussion sets the timing at 10o BTDC whereas our ysm8 is set at 25o BTDC. I can't figure that one out either.
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Old 27-12-2020, 20:52   #114
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Re: Deep fryer oil in diesel

Non ecu means all the timing is mechanical so it doesn’t change
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Old 27-12-2020, 22:19   #115
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Re: Deep fryer oil in diesel

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Just be careful with any paint thinner type products or you can have issues. You’d want to monitor exhaust gas temperature

Thanks for the warning.
Forgot to reply to this,
Yea have no intention of putting paint thinners in the diesel tank ( really expensive fuel) but I guess that was a general warning.
Incidentally I'm sure the EGT was higher tho I dont measure it but I'm very familiar with the usual temp.
Research on WVO said EGT should be higher but also producing another 3/4 of a hp would heat it up anyway.
From 5hp to 5 & 3/4hp is a fair %tage increase but I havent done the calc.
The fuel burn is so much better I think the chemists have it right pointing to the oxygen in the WVO.
The thing that puzzles me is that no WVO burners report a power increase but not many people are underpowered & overpropped these days.
Quite the opposite in fact as far as hp is concerned.
Beer oclock now, cheers
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Old 28-12-2020, 06:47   #116
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Re: Deep fryer oil in diesel

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Originally Posted by Compass790 View Post
Here is an example:https://www.ebay.com/itm/New-Gas-Die...QAAOSwq~Nf5V2Z
but I'm sure you can find more on Amazon if you want faster delivery.
I'd imagine O'Reillys or similar auto parts chain stores have them as well.
BTW you said " have a fifty for me" in an earlier post. Does that mean the same thing in the USA as it does here i.e. a 50 litre keg of beer?
Just curious.
I was speaking Canadian as I wrote that, so 50 means Labatts 50 Ale.
Don't know if you can get it there, Perhaps a Bass ale?
Anyway,a kegger will do nicely.
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Old 28-12-2020, 17:04   #117
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Re: Deep fryer oil in diesel

Just want to post a warning:
This thread was started solely to find out why I got more power using the 10% used cooking oil/diesel mix.
Don't try this at home unless you research your engine types suitability & much more besides.

We have a 1980 indirect injection, mechanical injection engine which is single cylinder & cheap for me to rebuild should anything go wrong. This is stated upthread but thought it worth repeating.

It is operated in a temperate climate so the increased fuel viscosity is not a problem. Minimum temp approx 4oC.

Here is a link to read to warn of some of the pitfalls if you are tempted to try it.
Straight vegetable oil as diesel fuel: Journey to Forever.
In our case it's a low risk trial, it may be very different with a ecu controlled, common rail, direct injection, multi cylinder engine.
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