Recent Topics
water-powered car thread from a couple days ago
by BRZED
33 minutes 13 seconds ago
$10 off $45 Purchase of Tekton Tools at Amazon.
by SubLGT
Yesterday at 11:33 PM
Reset KAM with tuner vs pull fuse vs disconnect ba
by sam369
Yesterday at 11:02 PM
Installing Oil Light On 2004 Ford With Idiot Gauge
by crazyoildude
Yesterday at 10:57 PM
'04 Venture 3.4 - Dex-Cool issues?
by Number_35
Yesterday at 10:03 PM
22" Craftsman side discharge mower garbage find
by Brybo86
Yesterday at 10:01 PM
Wheel score
by Toy4x4
Yesterday at 09:46 PM
Schaeffer oil's
by Rendezvous
Yesterday at 08:36 PM
update on my power pole
by Chris142
Yesterday at 08:13 PM
What new AWD car for my mom?
by skyactiv
Yesterday at 08:12 PM
Penpoint oilers
by mjoekingz28
Yesterday at 08:06 PM
GMC Canyon
by rokwldr
Yesterday at 07:42 PM
Newest Members
AlvinX, DocT, Dieselmerc, kbronc80, bady
54118 Registered Users
Who's Online
38 registered (Astro14, 901Memphis, 01_celica_gt, acmesupply, Bandito440, asiancivicmaniac, 3 invisible), 799 Guests and 128 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
54118 Members
66 Forums
231912 Topics
3717400 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 1 of 9 1 2 3 4 5 6 7 8 9 >
Topic Options
#3412287 - 07/02/14 07:31 AM Cleaning Engine Internals
Oldswagon Offline


Registered: 01/23/03
Posts: 781
Loc: ON
What is the general consensus about the best additive to help clean an older sludged engine? I am helping someone clean an older pushrod V8 with a carburetor that has a some sludge due to lack of use and a very slight lifter noise.

Would Auto RX be a good choice? Or maybe something solvent based? Maybe just run a HDEO? Obviously being an old engine I wouldn't want to damage any seals either.

Any opinions?

Top
#3412293 - 07/02/14 07:38 AM Re: Cleaning Engine Internals [Re: Oldswagon]
Olas Online   content


Registered: 12/11/13
Posts: 1297
Loc: Manchester, England
With the engine still in one piece and in the car, add 1qt of diesel to the sump, idle for 10 mins, replace filter, repeat. (As many times as necessary till the fluid stays clean.

If the engine is out/stripped then brake cleaner, pressure washer, autoclave, bucket full of nasty solvents etc..
_________________________
1982 VW Scirocco
1457cc
98 bhp
78000 miles
Redline fluids
Mann/Mahle filters

Top
#3412310 - 07/02/14 08:09 AM Re: Cleaning Engine Internals [Re: Oldswagon]
rshaw125 Offline


Registered: 08/18/04
Posts: 2661
Loc: Raleigh ,NC CSA
No need for additives. Many oils now contain plenty of cleaning agents. Try Maxlife or PP.
_________________________
2012 Porsche Carrera S
1995 Plymouth Voyager

Top
#3412323 - 07/02/14 08:29 AM Re: Cleaning Engine Internals [Re: Oldswagon]
4wheeldog Offline


Registered: 04/23/12
Posts: 788
Loc: East Mountains, NM
I personally would not use diesel, or any other harsh solvent. I have (In the distant past, which seems to be where your project comes from) had good luck using Rislone to turn sludge into a drainable liquid, and also to work some magic on noisy lifters. You could use it with an HDEO, maybe a couple of short OCIs.

Top
#3412342 - 07/02/14 09:00 AM Re: Cleaning Engine Internals [Re: Oldswagon]
OneEyeJack Offline


Registered: 09/14/10
Posts: 2958
Loc: S California
Auto-Rx.
_________________________
84 Honda Civic wagon 5-speed, 440K+ Red Line 0w-30, Red Line MTL
03 Toyota 4Runner V8 2WD, 145K+ Red Line 0w-30, Red Line D4 & 75W85 GL-5

Top
#3412368 - 07/02/14 09:23 AM Re: Cleaning Engine Internals [Re: Oldswagon]
Danh Offline


Registered: 10/16/10
Posts: 784
Loc: Illinois
Why not try a product designed to help engines that are older and/or neglected: a high-mileage oil like Mobil1 HM or Valvoline MaxLife? Mobil is confident enough in M1 HM's cleaning abilities to say the first few OCIs should be short (3-5k) to deal with the crud the oil is dissolving.

There are lots of opinions here, but one is that cleaning that is done too rapidly via introduction of a solvent can do more harm than good as sludge and whatnot is displaced too quickly, clogging filters, oil pickup screens, valve lifters, oil feed lines, etc. I'd try the HM route and see if it worked before resorting to more drastic measures.

Top
#3412370 - 07/02/14 09:26 AM Re: Cleaning Engine Internals [Re: Danh]
Kuato Offline


Registered: 10/23/05
Posts: 3688
Loc: US...on the road again
Originally Posted By: Danh
....
There are lots of opinions here, but one is that cleaning that is done too rapidly via introduction of a solvent can do more harm than good as sludge and whatnot is displaced too quickly, clogging filters, oil pickup screens, valve lifters, oil feed lines, etc. I'd try the HM route and see if it worked before resorting to more drastic measures.


I agree here; a too rapid cleaning can lead to blockage.

I have used ARX and it works as advertised, cleaning gradually over 1500 miles, so that would be how I went about it.

Using a known cleaning oil after a couple of ARX treatments would complete the job.
_________________________
“Wise men fear... the anger of a gentle man.” ~ Patrick Rothfuss


AMSOIL

Top
#3412390 - 07/02/14 09:49 AM Re: Cleaning Engine Internals [Re: Oldswagon]
440Magnum Offline


Registered: 02/01/09
Posts: 6913
Loc: Texas
Short interval oil changes. No additives.
_________________________
'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 Cherokee 4.0, '11 Grand Cherokee 3.6

Top
#3412394 - 07/02/14 09:52 AM Re: Cleaning Engine Internals [Re: OneEyeJack]
Trajan Offline


Registered: 07/16/05
Posts: 3646
Loc: SE PA
Originally Posted By: OneEyeJack
Auto-Rx.


Yep. Works well.

Cue the..........
_________________________

Lack of harm is not proof of benefit.

There are in fact two things, science and opinion; the former begets knowledge, the later ignorance. Hippocrates





Top
#3412438 - 07/02/14 10:52 AM Re: Cleaning Engine Internals [Re: Oldswagon]
Trav Offline


Registered: 11/20/06
Posts: 11736
Loc: MA, Mittelfranken.de
Any pictures of how much sludge?.
I strongly urge you to look through old threads on this ARX product especially the ones about posters being paid to promote this stuff.
After spending a lot of money on this product with zero results i would not buy another bottle or recommend it to anyone.

Look up some of my Honda engine cleaning threads about cleaning an engine. There are a few ways to do it and a few chemicals that may work better than others but there is nothing that is a one size fits all.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#3412445 - 07/02/14 10:57 AM Re: Cleaning Engine Internals [Re: Danh]
bigt61 Offline


Registered: 02/12/13
Posts: 1657
Loc: Virginia
Originally Posted By: Danh
Why not try a product designed to help engines that are older and/or neglected: a high-mileage oil like Mobil1 HM or Valvoline MaxLife? Mobil is confident enough in M1 HM's cleaning abilities to say the first few OCIs should be short (3-5k) to deal with the crud the oil is dissolving.

There are lots of opinions here, but one is that cleaning that is done too rapidly via introduction of a solvent can do more harm than good as sludge and whatnot is displaced too quickly, clogging filters, oil pickup screens, valve lifters, oil feed lines, etc. I'd try the HM route and see if it worked before resorting to more drastic measures.

+1 - MaxLife red bottle is all you need. A couple of 3000 mile OCI and then maintain normally. Avoid all special cleaning additives.
_________________________
92 Suburban 2500 7.4L 57k M1_5w30 4yr OCI
99 Olds Aurora 4.0L 91K M1_5w30 4yr OCI
94 Bonneville 3.8L 155k VML 5w30 2yr OCI
70 Camaro 5.7L 59k

Top
#3412658 - 07/02/14 03:15 PM Re: Cleaning Engine Internals [Re: Trav]
Kuato Offline


Registered: 10/23/05
Posts: 3688
Loc: US...on the road again
Originally Posted By: Trav

I strongly urge you to look through old threads on this ARX product especially the ones about posters being paid to promote this stuff.


FWIW I have received nothing from ARX except their product, at my expense.


Originally Posted By: Trav

After spending a lot of money on this product with zero results i would not buy another bottle or recommend it to anyone.

Look up some of my Honda engine cleaning threads about cleaning an engine. There are a few ways to do it and a few chemicals that may work better than others but there is nothing that is a one size fits all.



Perhaps your engine was too clean to benefit! I have used ARX on at least 3 used vehicles I purchased, and each time it worked as advertised.


Originally Posted By: Trav

Any pictures of how much sludge?.


Now that I agree with 100%! smile


Edited by Kuato (07/02/14 03:18 PM)
_________________________
“Wise men fear... the anger of a gentle man.” ~ Patrick Rothfuss


AMSOIL

Top
#3412670 - 07/02/14 03:31 PM Re: Cleaning Engine Internals [Re: Oldswagon]
Trajan Offline


Registered: 07/16/05
Posts: 3646
Loc: SE PA
So, who are the posters paid to promote it?

Only one I know of, who has no credibility given his multiple impersonations.

As for old postings. I have several that praise it over and over. Even one post that declares it miraculous.


Edited by Trajan (07/02/14 03:34 PM)
_________________________

Lack of harm is not proof of benefit.

There are in fact two things, science and opinion; the former begets knowledge, the later ignorance. Hippocrates





Top
#3412675 - 07/02/14 03:44 PM Re: Cleaning Engine Internals [Re: Oldswagon]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 16160
Loc: Sunny Florida
I am an Auto RX client. I bought more than one, my own fault, I know.

When I inquired about a refund I was ridiculed both by email and online. A truly non friendly company and a product that we were unable to eke out even the tiniest benefit out of.

All this hoo ha about rapid cleaning is just that, baloney. I have used Kreen in about a dozen vehicles with fantastic results in all but one. The stuff works.

And the company backs it up with a no-quibble guarantee that they actually honor...
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#3412709 - 07/02/14 04:31 PM Re: Cleaning Engine Internals [Re: Oldswagon]
simple_gifts Offline


Registered: 07/26/04
Posts: 9784
Loc: Middlesex County CT
Some people have had good luck with autorx (like myself), others not. I believe there is a thread from dnewton where he got before and after compression readings and it certainly improved the #s.

I've taken aspirin to relieve a headache and it hasn't worked; that certainly doesn't disqualify it as a pain reliever when others ask for a recommendation.
_________________________
2003 Echo >365K miles; ST 10W-40HM and some #132
2006 B2300;94K;ALM

Note to park visitors: Yellowstone wildlife is wild

Top
Page 1 of 9 1 2 3 4 5 6 7 8 9 >