We can clean the throttle body with spray (if we don't want to remove it) and the MAP sensor but can we go deeper with a spray?

 

 

That hose entry on the bottom for what reason is?

Can we spray there too?

 

 

 

 

Has everyone ever use such ''foam" products?

Or you think that the throttle cleaning is enough?

 

 

The tube socket (left and right) is vacuum but since they are at the bottom i wonder if we can use a long hose (like those on the A/C cleaning spray) to make the content of the spray to travel more inside the manifold.

Here is an example:

 

dont bother its a port injected engine

 

26 minutes ago, Thefeliciahacker said:

dont bother its a port injected engine

 

 

Every time you open the throttle for cleaning  you can see that some dirt is on the disk so after 22 years some kind of dirt wouldn't be inside that manifold?

 

It's a sludge with oil at the bottom of the collector. 

19 minutes ago, Thefeliciahacker said:

It's a sludge with oil at the bottom of the collector. 

 

Yes but year after year, cleaning after cleaning something will have been remain at the bottom of the manifold? Doesn't restrict a little bit the flow of the air?

And if all of that dirt (with the spray) is driven at the combustion chamber will be completely burned or can make things worst?

Unlike many, generally I like cleaning products and additives but prevention is always better than cure.  You look after your car so your need for this level of cleaning would be a lot less than with the average car and I think it's not the type of thing for many, including you, to worry about unless you already have the parts off the car.

 

Taking the throttle body off the car would possibly give more access for more thorough cleaning but it's not something you would do often even in 22 years and your level of cleaning it on the car may be very sufficient anyway.

 

Different cleaners are going to be good at removing different contaminants and to me it is doubtful you will get one cleaner that does a great job against all.

 

As Thefeliciahacker has put petrol is a great cleaner for the engine already.

 

Scotty has a different view on Sea Foam and has videos on spray inside cleaners, as with that Chris Fix I do not think you would see much improvement, a lot of the smoke is the cleaner itself.

 

Ever since the 1960s the engine have had to burn rather than dump to atmosphere plenty of muck so bits of residue lying here and there will make little odds (as I see it, others may know more).

 

10 hours ago, nta16 said:

Taking the throttle body off the car would possibly give more access for more thorough cleaning

 

Then i will need a new gasket plus a reset from a VAG-Com plus at least 50Km route so the ECU will read the new data then again a visit to mechanic for another scanning.

It's too much job for me.

When the weather gets warmer i have the thought to spray from both sides (vacuum hoses) plus from a full open throttle inside the manifold and let it soak enough before i start the car (far away from house due to the white smoke).

3 hours ago, D.FYLAKTOS said:

Then i will need a new gasket plus a reset from a VAG-Com plus at least 50Km route so the ECU will read the new data then again a visit to mechanic for another scanning.

It's too much job for me.

Gasket depends on gasket material, if paper you can make your own easily.  I thought your car has a metal cable throttle so no need for scan tool and you can disconnect the sensor wiring, even if it did put up an error code it could be deleted at a later time and of no matter as the throttle body will reset with normal use.  Bear in mind you are already fully opening the flap and cleaning so resetting anyway.

 

 

3 hours ago, D.FYLAKTOS said:

When the weather gets warmer i have the thought to spray from both sides (vacuum hoses) plus from a full open throttle inside the manifold and let it soak enough before i start the car (far away from house due to the white smoke).

As with the video these deep spray are usually done with the can running at revs to get cleaner and muck through and out of the engine and without the car stalling causing a build up anywhere.  What about any carbon build up anywhere inside the manifold or ports, same cleaner or different cleaner.

 

 

Apparently you can get cheap borescopes that can be connected to smartphones so you could inspect inside the manifold and elsewhere to see if the job is worth starting and as with that Chris Fix video how effective or not the cleaning was (I wasn't over impressed with the results he got, or his driving of another person's car, very lazy auto style of driving  even of a "stick shift").

 

5 hours ago, nta16 said:

What about any carbon build up anywhere inside the manifold or ports, same cleaner or different cleaner.

 

The solution is to remove the Air Manifold and clean it thoroughly but i will not do it.

I wonder if i spary a lot (from upper and lower position) let it soak and then start the car, i will see white smoke from the exhaust etc but this procedure won't affect even a little bit the spark plugs?

After this ''petroleum storm'' will remain intact?

The idea of having the engine warmed and running whilst spraying is to get the cleaner in and eventually out of the tailpipe in one go, revs are up to put in a good volume of air and petrol mixture to help clean off and clean out the cleaner and muck. The switching off and leaving the car standing for 5 minutes after I guess is to allow for the cleaner to soak in whilst the engine remains or gets warmer from the heat soak from switching off.

 

If you then go for a good ('Italian tune-up') drive you will then further blow out the internals and the plugs with more cleaning air fuel mixture - so as at the end of even just an 'Italian tune-up' by itself the spark plugs would be clean through blow-out use.

 

12 hours ago, nta16 said:

go for a good ('Italian tune-up') drive

 

 

https://www.youtube.com/watch?v=PkUq5mp2plc&t=314s 

(Italian tune-up)

Sorry I think you have misunderstood me, I did not mean the 'Italian tune-up' as an alternative method of cleaning but as a method of driving after this cleaning to get the cleaner and crud that is in there from the Seafoam and its hopeful cleaning out of the engine and off the spark plugs as you asked.  In the video he says something like "it may get something off your pistons if you have something on there" which is what you wanted with the Seafoam cleaning.

 

The definition he used as an 'Italian tune-up' is stricter than the general use of my understanding, mine is to drive in a very spirited manner not rev the rocks off the car (or drive like a total idiot), more about harder driving to get more air mixture through and out of the exhaust quicker to get the process over quickly (and perhaps more thoroughly).. 

 

Note he also said about the car being carb'd up from the petrol and oils used, prevention is better than cure, also as said at the end of that video.

 

Also bear in mind the video relates to later engines but I still wonder if it worth the effort for earlier engines even though gernerally I am not against additives or spray cleaners but they do have to be effective to be worthwhile and many are more as preventatives than cures.

 

ETA: I am going to stop using the term 'Italian tune-up' would the term 'very spirited driving' make sense?

 

 

Edited 8 February, 20224 yr by nta16