Author Topic: Would you bother re-reacting.....  (Read 2654 times)

Offline Bio-boy

  • Impeller jammer
  • ***
  • Posts: 197
  • Location: Wirral
Would you bother re-reacting.....
« on: April 26, 2015, 07:09:48 PM »
I have just done a 10/90 test and had .3 fallout. Would you bother re-reacting or would you accept that result.

I was rushed for time so didn't spend as much time as I usually would processing the batch.

Offline Jamesrl

  • Wiki Editor
  • Oil baron
  • *******
  • Posts: 2163
  • Location: Witsend, Cockoo Land
Re: Would you bother re-reacting.....
« Reply #1 on: April 26, 2015, 07:33:04 PM »
I have just done a 10/90 test and had .3 fallout. Would you bother re-reacting or would you accept that result.

I was rushed for time so didn't spend as much time as I usually would processing the batch.

It depends on what vehicle it'll be used in, personally I would but then I drive a common rail.

It never pays to rush a brew.

Offline BassAddict

  • Wiki Editor
  • Barrel scraper
  • *
  • Posts: 43
  • Location: Dudley
Re: Would you bother re-reacting.....
« Reply #2 on: April 26, 2015, 07:33:59 PM »
I wouldn't but that's because I've got a car that will run on veg if needed.

Would be cautious about an emulsion if adding any water in your process though.
GL Eco 180 litre batches
Golf Mk 4 1.9 - 45000 miles on B100

Offline K.H

  • Administrator
  • Oil baron
  • *******
  • Posts: 2353
  • Location: Tosser towers
Re: Would you bother re-reacting.....
« Reply #3 on: April 26, 2015, 07:39:18 PM »
As said your car will dictate the answer

Offline Bio-boy

  • Impeller jammer
  • ***
  • Posts: 197
  • Location: Wirral
Re: Would you bother re-reacting.....
« Reply #4 on: April 26, 2015, 08:09:57 PM »
110 TDi

Offline Dickjotec

  • Wiki Editor
  • Oil obsessive
  • *****
  • Posts: 665
  • Location: Worcester
Re: Would you bother re-reacting.....
« Reply #5 on: April 26, 2015, 08:26:44 PM »
Vag 110 TDI is a veg motor I would not bother even if it was much higher.
Bio since 2007  running Delica and Octavia

Offline dgs

  • Wiki Editor
  • Grand Gunge Master
  • ******
  • Posts: 1330
  • Location: york
Re: Would you bother re-reacting.....
« Reply #6 on: April 27, 2015, 03:27:33 PM »
I have just done a 10/90 test and had .3 fallout. Would you bother re-reacting or would you accept that result.

I was rushed for time so didn't spend as much time as I usually would processing the batch.

As said, for an indirect injection engine, don't bother. If it was direct, common rail, ideally the dropout should be zero.

I am informed that from GC testing/10/90 test the bonded glycerine spec will just pass if the dropout does not exceed 0.15mls. This figure is based on the fact that up to 2% triglycerides will not show up on a 10/90 test due to their small solubility in methanol. This is also why if the 10/90 test shows a pass, then the conversion should be expressed as
> (greater than) 98%
FOC water tests by Sandy brae or Karl Fischer for forum members.

Offline Jmg

  • Wiki Editor
  • Impeller jammer
  • ***
  • Posts: 134
  • Another Fine Product From The Nonsense Factory
    • Veg site
  • Location: Fife
Re: Would you bother re-reacting.....
« Reply #7 on: April 28, 2015, 05:29:32 PM »
I never did a second stage when driving veg friendly motors no matter how bad the result so in the end I stopped testing.
Rampant automobile serial killer.

Currently torturing a 2.5 Mitsubishi Challenger on b100, not dead yet :)

Offline Tony

  • Administrator
  • Oil baron
  • *******
  • Posts: 5108
  • Fo' shizzle, biodizzle
    • Southampton Waste Oil Collection
  • Location: Southampton
Re: Would you bother re-reacting.....
« Reply #8 on: April 28, 2015, 06:52:29 PM »
I used to run partial conversion in the Delica all the time.  The only thing I would add is that sometimes a partial conversion seems to stop the soaps settling out properly, and clouds very easily with moisture.

These days I'm picky and always got for a clear pass even though the car is a proper Bosch veg muncher.  Do a job properly and all that ;)