| [ Total Views: 1171 | Total Replies: 12 | Thread Id: 66953 ] |
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 vickie
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| posted on January 12th, 2008 at 11:48 AM |
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carbon flush????
Just had my husbands car carbon flushed, primarily to clean the injectors, performance is so much better now, the mechanic said it also flushes out
the carbon deposits throughout the engine....
would this be beneficial for the beetle????
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 vw54
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| posted on January 12th, 2008 at 12:01 PM |
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probally not as your Bettle dosent have fuel injection
the best service for your Beetle is to change the engine oil regularly
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vickie
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| posted on January 12th, 2008 at 12:06 PM |
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i know there is no fuel injection.... the angle i'm curious about is the carbon deposits in the engine that have built up over 45years.... could the
flushing work for that... or is it even an issue???
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 Bizarre
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| posted on January 12th, 2008 at 12:41 PM |
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Depends
When was the motor last rebuilt??
Does it run on when you turn it off??
"Some" people recommend putting/pouring a SLOW stream of water down the carb whil the motor is idling at high revs.
This will clean any carbon deposits out.
How much did they charge and how did they do it??
Futue te ipsum!!!
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Joel
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| posted on January 12th, 2008 at 12:48 PM |
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an old mechanic freind that i know showed me how to properly do the old italian tune up method with water
all these old grannys that putt down to the shops and back once a fortnight that carbon up theyre cars he had a method for
he had a spray bottle rig setup get it nice and warm and give the carb a few squirts of water while flogging the shit outta it down a quiet country
road cos of the smoke screen it makes
came back with a nice steam cleaned engine purring like a kitteh again
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vickie
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| posted on January 12th, 2008 at 01:01 PM |
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Thanks for the advice, the engine has been rebuilt but before i owned it. She is starting to run for a second or so after ignition is turned off.
the carbon flush is $180 and i don't know how they did it, but the other car is great now.
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shiftyvw
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| posted on January 12th, 2008 at 03:50 PM |
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I used to do them when i was a mechanic. Basically you pull the fuel pump fuse, disconnect the fuel line from the rail, crimp the return and Hook up
the pressurised can of solvent to the rail. The rig had a little pressure reg so you just started the car and adjusted it so it idled ok and let the
can run through until empty, about 10min from memory. I dont think it would remove massive deposits from a couple hundred thousand KM's, but if done
every couple of services should keep the injectors clean and remove deposits from the ports and valves before they got really hardened and built up.
On another interesting note BMW V8's(maybe the others as well?) from the 90's had a real problem of clogging up the intakes with carbon deposits, so
we had a Factory BMW Walnut Shell Blaster!!! Complete with BMW approved walnut shells! You would remove the intake manifold, turn each port over till
the valve was closed and bolt this contraption over the port and it would sit there blasting the port with walnut shells till it was clean as new!
Engines ran like new afterwards!
testing 1 2 3...
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68AutoBug
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 posted on January 12th, 2008 at 04:39 PM |
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You can get carbon build up in the heads...
around the valves and spark plugs and on the valves..
its Not normally a problem with VW engines these days...
VW Engines do not get carbon build up inside the engine
as they used to in the 50s 60s because of the Detergent oil We use now...
when detergent oils were first introduced..
many engines rattled and lost compression
as the carbon was keeping the engine tight and oil pressure high... this was with All old car engines...
and caused major problems..
I wouldn't waste $180 on Your VW engine...
You can buy additives You add to Your fuel tank to clean Fuel injectors... Wynns NULON etc..
You used to be able to buy a spray to spray down the carburetor throat to clean the engine inlet exhaust etc
but this is hard to find now as Carburetors have Not been on New cars for many years....
Lee
http://www.superbeetles.com/index.htm
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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68AutoBug
A.k.a.: Lee Noonan
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| posted on January 12th, 2008 at 04:53 PM |
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You can also buy a bottle of REDEX or Wynns ??
called engine flush [I think]
You pour it into the engine oil
run the engine for a few minutes
then drain the oil and all the sludge will come out..
I have had a bottle of this for about 5 years....
never tried it out yet.....
Lee
http://www.superbeetles.com/index.htm
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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shiftyvw
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| posted on January 12th, 2008 at 05:01 PM |
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Those engine flush additives are ok I think, but no substitute for regular oil changes. Doing a simple oil change in between the service intervals (eg
at 7500kms) is the nicest thing you can do for a new car. The main problem with carbon builups is in engines with hydralic lifters and tensioners etc,
mainly from manufactures extended service intervals. Lift the oil cap off a newish car that has had 25000 km oil changes and city driving and you will
see what I mean. Ive also seen Bora's etc with blocked pickups.
testing 1 2 3...
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MickH
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| posted on January 12th, 2008 at 10:56 PM |
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| Quote: | Originally
posted by shiftyvw
I used to do them when i was a mechanic. Basically you pull the fuel pump fuse, disconnect the fuel line from the rail, crimp the return and Hook up
the pressurised can of solvent to the rail. The rig had a little pressure reg so you just started the car and adjusted it so it idled ok and let the
can run through until empty, about 10min from memory. I dont think it would remove massive deposits from a couple hundred thousand KM's, but if done
every couple of services should keep the injectors clean and remove deposits from the ports and valves before they got really hardened and built up.
.............................
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The "solvent" used is a mixture of Nitrius Oxide and Naptha (in solution). Don't sniff the fumes..it makes you as sick as a dog...but smells so
sweet!!!!! It REALLY cleans the heads and valve faces up...like new in most cases....
You can by the spray cans of decarboniser from Subaru as they use it as part of their regular servicing schedule (fogging oil) but it's different to
the Wynns stuff but cheaper and effective.
tssnq.com.au
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vickie
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| posted on January 13th, 2008 at 06:17 AM |
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Thanks for thice guys, i think i'll try the additives then oil change.
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Craig Torrens
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| posted on January 13th, 2008 at 11:42 AM |
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Use Wynns "spitfire plus" in your fuel (directions are on the bottle)
Redex also makes a fuel treatment, I used this in my L Bug when I drove it back from Melbourne. Put some down the carbie throat and the rest in the
tank...............................works well 
You need to use a petrol treatment for carbon build up, not an oil treatment.
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