View Full Version : How much sludge "if any" do I have.

03-14-2008, 11:07 AM
I pulled off my valve cover today to check out about replacing the gaskets and they need it but I was also looking to see how much sludge I have. These are the pics I took and I saw a little but I was to see what other people think about how much I have. I did a seafoam a little while ago but Looking to do a auto-rx. What do you guys thinks. Pics below. Also what about the timing belt in the lower corner of the second pic. It was replaced at 71k and I have now 96k but I heard when you see the notches on the belt showing through its getting worn.

http://img337.imageshack.us/img337/6412/cimg0925dr2.th.jpg (http://img337.imageshack.us/my.php?image=cimg0925dr2.jpg)

http://img156.imageshack.us/img156/1346/cimg0927wu5.th.jpg (http://img156.imageshack.us/my.php?image=cimg0927wu5.jpg)

http://img219.imageshack.us/img219/8996/cimg0928av1.th.jpg (http://img219.imageshack.us/my.php?image=cimg0928av1.jpg)

03-14-2008, 01:23 PM
looks like you skipped an oil change or two

Not too bad tho... I've seen waaay worse.

03-14-2008, 01:58 PM
worse like this? (NOT MY CAR!)

some more to compare


03-14-2008, 02:34 PM
Thats not bad, mines comparable. It was when i got it, the previous owner used 89 octane with a non synthetic. Ive been running 91 octane with Motul 5w-40 synthetic for the last 11k miles and its wayy better now.

03-14-2008, 03:12 PM
Ok well thats good because at least its fixable before it gets to bad. It was not me who skipped becasue ever since I had it "maby 8 months" I have not skipped at all and always put mobil one in it so I know im doing my part. It actually looks worse in the pic then in person. Do you recommend using the auto rx treatment or not. I also spend all day today cleaning off my whole valve cover and Its sooo clean. I will post pics up of what it looks like. I'm going to be scared to put it back on becasue its going to get dirty again.

03-14-2008, 03:27 PM
Won't seafoam get rid of most of that gunk?

03-14-2008, 03:41 PM
Yes it will but I only put about 1/4 a can in after sucking up most though the intake manifold. It did a good job of cleaning out my turbo and lines but when added to the crankcase it thins the oil so a oil change will be required after a little driving with it. I was told auto-rx is a more thorough and more time processed thing that really cleans out the engine well. Its worth a shot if mine was never done. Im sure you don't want to overdo it and do it all the time.

03-14-2008, 03:45 PM
i did a seafoam like 3 days after a synthetic oil change

still driving on it

03-14-2008, 03:53 PM
Im still driving on mine and its going fine but it does thin out the oil. If your oil was new it should be ok.

03-14-2008, 03:55 PM
tbh i was a bit worried but its been ok. I think i'll just change it a bit earlier this time

03-14-2008, 04:43 PM
If you drop the oil pan I would also Def replace the oil pickup.

03-14-2008, 04:55 PM
seafoam on crank case should'nt be there more then 500 miles

03-14-2008, 04:57 PM
yeah, post some of your clean valve cover...I'd like to see it and also what you used to clean it off.

03-14-2008, 04:58 PM
If you drop the oil pan I would also Def replace the oil pickup.

Thats another question I wanted to know. How do I get to and check the Oil Pickup Screen to see what that looks like. Thanks.

03-14-2008, 05:23 PM
Here is what I have so far. You can see if still needs some cleaning on the inside of where the spark plugs go. Also that weird swill pattern at the top of the cover is just how it looks when I was cleaning it off thats what started to appear its smooth there just does not look like it.

http://img219.imageshack.us/img219/8996/cimg0928av1.th.jpg (http://img219.imageshack.us/my.php?image=cimg0928av1.jpg)

http://img132.imageshack.us/img132/3998/cimg0932fi8.th.jpg (http://img132.imageshack.us/my.php?image=cimg0932fi8.jpg)

03-14-2008, 05:25 PM
^^ what did you use to clean it ?

03-14-2008, 05:35 PM
Well I used just some non abrasive spray cleaner that I bought at a really good auto shop. Its almost just like goo gone or another type of spray cleaner so that should work just fine. Just make sure it doesn't eat metal. And the biggest key is just time and allot of elbow grease. I also used some penetration spray in the begging just to break up the big stuff then I sprayed the thing and let it sit a hour or two and it really worked well. When I came back I could see it ate it up and was just floating there so I just wiped it off and away it went.

03-14-2008, 06:35 PM
Definitely a little cruddy. Try some autoRX check mine out.


03-14-2008, 06:41 PM
O man thats what im looking for. Was yours fine or was that from auto-rx. Also I don't have a seccond cap to go over the rods is it needed. When I pulled it off all there was, was one.

03-14-2008, 07:08 PM
This is my head after it was cleaned. Has about 15k miles on it like this. Regular oil changes with BMW Synthetic and K&N oil filter. [;)]

03-14-2008, 08:21 PM
I cleaned mine with a product called Oil Eater and soft scotchbrite pads. Worked wonders for cleaning up the pistons for reinstall.

Changing or even inspecting the oil pickup is pretty involved. Support the trans, loosen mounts, lower subframe as much as possible, jack engine/trans up, remove pan, remove pump. Got pics of all of that but they have also been posted dozens of times in other threads.

03-15-2008, 07:48 AM
Yes I heard it was a difficult job but that also can be really affecting my car if its clogged. I at least want mine to look like chris. I though mine was ok but compared to what I want it to be its not. My shop that I live near has something called envirotek engine flush which I was told by them is like auto-rx but a more powerful seafoam. They said it should take away a good amount of that and the more regularly you use it it should almost be back to normal. The place is out of pa here so its more of a local item.

03-15-2008, 08:43 AM
how does the cam chain tensioner look?

if you do use some of those cleaning products i would be scared of all that buildup clogging up the oil pump pickup screen and causing a lot of damage. it wouldnt be a bad idea after flushing/cleaning all that crap out to change the pickup screen or atleast clean it really well

03-15-2008, 09:38 AM
That is the exact same thing I was thinking. As soon as I flush it assuming it works and it all goes away the pickup screen is going to catch it and cause more harm then I had before. Biggest Problem is I don't have the tools to get to the oil pan. I hate my car more and more every day even though this is normal behavior from a audi.

03-15-2008, 09:51 AM
You guys should NOT be driving on seafoam as much as you are. Anyone who tells you different does not know what there talking about. It should be used for no more then 100mi.

03-18-2008, 05:51 PM
and this is safter a little clean up

03-18-2008, 05:56 PM
auto tx here i come, i been hearing that diesel and keroseen after the treatmen, 500 mile later will crapp out ur oil pump due to the sludge going from ur cam shafts and in to the oil pump!
anylight on this?

03-18-2008, 05:58 PM
Definitely a little cruddy. Try some autoRX check mine out.


you should meet with my buddy Rigert he is in clearwater.. has turbo probe now

03-19-2008, 02:54 AM
any one has any tips on the rear cam seal change i know i have to loosen that chain but i dont wonna skip a tooth or two!!

03-19-2008, 06:13 AM
90K miles of mobil-1: