A comment and a question!

[B-Doon]

First the comment.

I made the soda blaster that was mentioned here last week...It worked pretty well. I was impressed with the results...It didn't touch the rust like the writeup said, but it worked well on the grime....one cavaet: you need LOTS of air and LOTS of baking soda...both go Very fast...

Props to the original link...

http://www.aircooledtech.com/tools-on-the-cheap/soda_blaster/

The reason for my comment was I am FINALLY getting around to coverting my solex over to a weber that I bought off Winston 1 or 2 years back.... I got the intake manifold off and took some closeup pics of the valves....

What's the diagnosis? Am I on my last legs? The buildup is quite considerable...

Peace,

Brian

72 inka

[c.d.iesel]

from SODA blaster to now WALNUT blaster

what we have here is a failure to keep oil

where it belongs - you gots leaking valve guides/seals

BMW Service Bulletin says to WALNUT BLAST

to clean this condition up. Obviously with the valve closed

when blasting it> Your fortunate to have the intake manifold

off so this is easy at the moment. BUT the condition will

return. You need to remove the cylinder head and

replace guides, seals, maybe valves because of stem wear,

or maybe just the seals........... ???????

" BLETCH!! "

OR you could just start adding TECHRON to every tank of

gas. TECHRON is just for this condition - but it wont

stop the oil flowing past the guide/seal

[kbken62]

When you take your foot off the gas do you get some smoke coming out the tail pipe?

The amount of smoke will be in indicator of how bad of a situation you have on your hands. I'll further assume the engine has a fair bit of mileage.

If it is not smoking at all that build up has happened over a longer period of time. Running the car rich and tiny bit of oil over time will do that too.

But as has been said, you do have to do something about it. Ignoring it will not make it go away.

I know my friend who is a Toyota Master Mechanic gave me some fuel cleaner in a small gray can also from Toyota and I tell you that really cleaned up my valves. I also changed the type of oil I was using to synthetic.

Maybe you can get another year or two out of it before anything serious.

But if it is blowing smoke, the Highway Patrol will pull you over and tell ask you if you are James Bond in a car chase scene.

Best of luck!

[c.d.iesel]

POOR MANN's Valve Job :

READ THIS LINK:

http://www.bmw.com.ph/walnutblast/thebmwsolution.html

[B-Doon]

CD,

Is this service available here in the States? My 02 can barely make it across town, let alone the Philippines...

hey CD, one quesiton...how does one hook up the electric choke weber to a power source....just a wire(guage?) with a spade connector connected to....what?

Thanks!

Brian

[Napes]

Brian;

The most common source of 12v power for the elec. choke is the #12 fuse, though some come off the 12v+ side of the coil. 16 ga. wire is fine.

Bob Napier

[c.d.iesel]

the Wallnutt-Blasting process was a common repair to

528, 325 . 635 six-cylinder motors in the late 1980's,

early 90's because of the poor gas (read poor detergant

qualities) causing carbon buildup on the intake valves.

The build up would soak up the very fine and low volume of gas

injected at idle , and cause rough idle, and difficult starting.

So removing the carbon as pictured above was needed.

BMW supplied a jig that attached to the bare head - intake

port and they also supplied the walnutt medium.

Removal of the intake manifold was the bulk of the labor.

Most of these Special Tool blaster kits have probably been tossed

into the neighbors pool by now as no dealers perform this

job any more thanks to improved gas detergants, TECHRON,

and the removal of EGR syatems that dumped all that krap

into the intake was eliminated infavor of newer emission

control devices - the carbon syndrom ended .

Merry X Mas