siscogts

Hi!
I was talking with my friend, a Subaru technician...
HE told me that he cleaned recently 4 injectors from a WRC car with stunnng results using IPA(iso-propylic Alcohol)....

I think it is not the right solution for injectors(the best is ultrasonic cleaning, then some stuff like Sta-bil or Others), it is good, if possible to clean the MAF sensors.I will clean mine with some shoot of that IPA, hoping the same results of my daily driver(incredible how it got better).

what do you think?

have someone ever tested isoprpylic alcohol?

Francesco

linderpat

Subscribed. also wondering if it is ok to use it for electrical contact points as well (I know I know use DeOxit; but if that isn't handy, is ISP alcohol ok)

siscogts

I can tell you for sure that is good for electronic boards, especially old ones and help to resolder dirty joints, good for old airflow meters and their internal track, dirty contacts but not oxidation on contacts and switches. Dry contact cleaner or oily are better. Did not try deoxit, still, but I bet it doesn't work with Mac and injectors...

Randy V

Are you referring to Isopropyl Alcohol? AKA Rubbing Alcohol?

There is no such compound as Isopropylic alcohol.

siscogts

Yep, that one. Didn't know the right word. So it is isopropyl... I learn languages and 928 secrets at the same time... Thank you.

joejoe

I use 91% isopropyl (cvs pharmacy) forw clean up on my pioneer rt 909 reel to reel with very good results. Finished contacts with deoxit. Regular rubbing alcohol contains too much water.

upstate bob

the best easily available solvents for gummy deposits and tars are acetone and laquer thinner, which has acetone in it. Pure ethanol is a tremendous solvent but difficult to buy thanks to ATF.

syoo8

OP: perhaps change the thread title, so that others can use the thread as a reference?

siscogts

Acetone or ethanol are very good cleaners, but too much strong for injector's components and seals.

dr bob

Ethanol is fine in injectors. Isopropyl comes in various water dilutions. Dry stuff is a good cleaner, and as pointed out is regularly used in the last wash for circuit boards. Takes the last flux residues off. Acetone is too tough on plastic parts of MAF and injector bodies to be used straight for that.

siscogts

i did fuel line job today...and I discovered that isopropyl sprayed on front fuel damper and iron wool removed the dirt....at least 15 years I am trying to clean plated parts on my car, without ruin plating...
now I found how to do that, picture of the cleaned front damper soon.
I am really happy.

where to get ethanol?


PS: a 1-,5 hour job ended up to be a 3,5 hpur job, cleaned every plated part I could....

Randy V

80% ethanol.

Wisconsin Joe

Ummm...

No.

80 proof is 40% alcohol.

dr bob

Ethanol in the US is sold as "denatured alcohol". Has a few tasty impurities added so it isn't suitable for human consumption. Cheaper than wasting a good vodka for parts washing. Other favorites include histoclear, chemical name escapes me right now. For most casual engine bay cleaning, car wash soap does a good job. For more than casual jobs, I go to it following the 'just enough' rule. Helps minimize collateral damage.

17prospective buyer

Acetone isn't that good for cleaning... it's a pure, very volatile solvent good for light pre-paint wipe down. It flashes much too fast to be good for any practical cleaning, melts/softens some plastics (i'm sure the guy above me will know which specific plastic compounds it reacts with). Too hot to use as a paint thinner as well. Laquer thinner is not much different from gasoline, it's just a slightly heavier mish mash of hydrocarbons and compounds, has xylene, toluene and all that bad stuff in it. I prefer varsol/mineral spirits because it's a little less harmful both on the hands and as a vapor.