DASC 318ti Health Check this weekend - Advice?

[DustenT]

I'll be pulling the DASC off this weekend for inspection and general maintenance. I'll also be doing a compression test to determine how much life the m44 has left in it. While I'm in there, what else should I look at?

This is what I plan on doing:
- Replace DASC gaskets, clean and seal everything
- Reroute factory FPR so it sees boost
- Inspect SC for telfon coating failure
- Replace any vacuum lines, hoses that need it
- Replace valve cover gasket, spark plug gaskets
- Compression check
- Install new Bosal exhaust

Is there anything else I should do while I'm at it? I just rolled 134k miles.

[DustenT]

Everything went great this weekend. I pulled the SC and verified that I did lose some teflon coating from the water injection, but not all of it. I pulled the valve cover and replaced all the gaskets, I'll post pics later today.

I did a compression test, surprisingly I have 180 psi in each cylinder!!!!!! Uhhhh, the motor has 135k miles on it, 35k with a supercharger and it still has 180 psi of compression??? Holy sh1t! My helpers where very impressed with the dual timing chain and roller rockers. I also checked and verified that the cam gears on the m44 ARE adjustable. I replaced the spark plugs with Bosch Platinum +2, the car idles a little better now. I re-routed the vacuum line for the stock FPR so it sees boost, this actually made a noticeable difference! We also replaced all DASC and intake manny gaskets while we had everything apart.

Overall, I'm impressed with the condition of everything. I thought I would for sure find something wrong after the abuse I've given it.

[Panzer_M]

what plugs where you using before?

[DustenT]

Originally Posted by Panzer_M

what plugs where you using before?

NGKs - The stock recommended plugs.

[Panzer_M]

ah, i went to Bosch +4s, and it helped with the fouling/idle issue of the 4cyl. least it seemed to help with the problem.

[Mendi3]

Originally Posted by Panzer_M

ah, i went to Bosch +4s, and it helped with the fouling/idle issue of the 4cyl. least it seemed to help with the problem.

I may have the same problem. At idle, my RPMs go from 600 to 950 most of the time.

What is the part number for the spark plugs? I may try them and see what happens.

[Mendi3]

Originally Posted by DustenT

Everything went great this weekend. I pulled the SC and verified that I did lose some teflon coating from the water injection, but not all of it. I pulled the valve cover and replaced all the gaskets, I'll post pics later today.

I did a compression test, surprisingly I have 180 psi in each cylinder!!!!!! Uhhhh, the motor has 135k miles on it, 35k with a supercharger and it still has 180 psi of compression??? Holy sh1t! My helpers where very impressed with the dual timing chain and roller rockers. I also checked and verified that the cam gears on the m44 ARE adjustable. I replaced the spark plugs with Bosch Platinum +2, the car idles a little better now. I re-routed the vacuum line for the stock FPR so it sees boost, this actually made a noticeable difference! We also replaced all DASC and intake manny gaskets while we had everything apart.

Overall, I'm impressed with the condition of everything. I thought I would for sure find something wrong after the abuse I've given it.

Very impressive. Those are great numbers!

[Panzer_M]

AutoZone carries them, just tell them your model/year and you want Bosch Plat 4(4 electrods per plug)

[HuGo]

i just purchased 8mm magnecor wires. What kinda spark plugs should i use with them for good performance, or the ngk's are fine?

[DustenT]

Pics of the valve train:

[stormos]

looks good dude, did it look that clean before you did the ATF flush ? Dual timing chains ? very classy, how'd you do it ?

[Mendi3]

Originally Posted by Panzer_M

AutoZone carries them, just tell them your model/year and you want Bosch Plat 4(4 electrods per plug)

I will try them and post the results. Thanks!

[DustenT]

Originally Posted by Mendi3

I will try them and post the results. Thanks!

Stay away from +4 anything. Just stick with the stock recommended plugs!!!! Why would you run a different plug than what the manufacture recommends? I've had nothing but problems with +4s. Remember SplitFire? Those things were junk but cost $8/piece!