Kerosene Flush

paulo57509 · Sep 17, 2005

http://www.w-body.com/forum/viewtopic.php?t=33768

I can't believe that anyone would recommend doing this.

andyd · Sep 17, 2005

its been around for yrs. I remember Smokey Yunnick advising using 5 qts of diesel fuel instead just 1 qt of kerosene. The risk in any fast flush is that if the oil pickup screen plugs up.............

Eddie · Sep 17, 2005

Something my grandpa use to do with a 1941 Pontiac. Popular quick flush was to add one quart kerosene to crankcase and run engine for several minutes. Drain thee mix and refill with oil.Remember ther was no detergent oil in those days to hold stuff in suspension.

Gary Allan · Sep 17, 2005

Yep ..geezer trick. It works ..but you can't recommend it to anyone. It's too dangerous in terms of potentially killing the engine. Typically, however, in these situations, the engine is virtually null and void anyway ..but then usually so is the owner in terms of resources..otherwise they wouldn't own the lame engine to begin with.

It's something that you can "get away with".

Just a thought ..given the current price of kero/diesel ..and the oil you need to flush the crancase ...I think Auto-Rx is a better deal considering that you get to run the oil for a few thousand miles in the process.

Ugly3 · Sep 17, 2005

quote:

Originally posted by Eddie:
Something my grandpa use to do with a 1941 Pontiac. Popular quick flush was to add one quart kerosene to crankcase and run engine for several minutes. Drain thee mix and refill with oil.Remember ther was no detergent oil in those days to hold stuff in suspension.

Back in 1941 they used to add a quart of kero to the oil in the winter just to get the old beast to start.

TheTanSedan · Sep 17, 2005

I remember this one from mechanics who were old men in the early 1970's. Never tried it, but have used GUNK and other products on and off since those days. Haven't lost a motor yet . . . but wouldn't use anything but LUBE CONTROL for an "old-fashioned" style clean-up (MolaSoak).

Leo · Sep 17, 2005

A whole heap of people on probetalk.com and mx6.com use this technique. About 50% kero, 50% oil and idle the engine for 10-15 minutes and drain. So far noone has reported engine failure. On the contrary, positive results occur! It is mainly used to fix stuck HLAs that tick away...

T-Keith · Sep 18, 2005

Ack, I wouldn't know where to jump in on that one! Restore, Kerosene, floating bearing material OH-My!

I used to be a member there a long time ago.

The guy probably just has a Fram filter. The early 2.8/3.1 has a slight valvetrain tick, especially with Fram filters.

-T

Eddie · Sep 18, 2005

I don't think a 1941 Pontiac or others in this era had oil filters.

Drew · Sep 18, 2005

I started getting a valvetrain tick in my 92 Nissan Stanza and tried the kerosene engine cleaning method. I idled a mixture of 2 quarts of kerosene to 2 quarts of 10w40 oil for about 15 minutes.

It didn't do anything for the ticking noise.

Gary Allan · Sep 19, 2005

quote:

A whole heap of people on probetalk.com and mx6.com use this technique. About 50% kero, 50% oil and idle the engine for 10-15 minutes and drain. So far noone has reported engine failure. On the contrary, positive results occur! It is mainly used to fix stuck HLAs that tick away...

Yeah, but how many of them do UOA ...and just how did the engines get in that condition to begin with?? I've seen very few well maintained engines needing this type of technique as a remedy (naturaly YMMV).

Kerosene Flush

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