After my track day in Salinas this past weekend (60 minutes of track time, what a blast) I drove home and parked the car. I took the car out monday and washed it and on the way home from the car wash I got a check engine light. Read it with the dashdaq and its the P0505. Bummer. Anyway, the car was running fine so I decided to ignore it until after vacation. Took the car out wednesday and it would hardly idle. Soooo, today I got out the tools and florescent light to do an exploratory. I felt it was a leak somewhere so my plan was loosen the manifold screws and re torque them. Went to loosen the first screw and it was already loose. THEY WERE ALL LOOSE! Not even finger tight. How the car was even running, I don't know. Got them all re torqued down and now the car purrs again. I still have the P0505 however. The engine is idling at 700 RPM's so something is still leaking. I don't know if the manifold gaskets are where the leak is or if some other part is also loose. (I have the Needswings cork gaskets on the car) The original drivers side metal gasket got a bit bent so I don't want to reuse it. Who wants to guess what's still leaking? Can I reuse the stock gaskets if necessary? Anyone else get rid of a P0505?

Les

 

Try new gaskets, and loctite the manifold screws when you re-assemble.

 

Needswings mani's need his cork gaskets. More then likely if they got that loose you ruined the material. Contact needswing to get another set. Factory metal ones wont work with Needswings mani's.

 

I still have the stock manifolds. With the Needswings catch can instal the manifolds had to come off so I went ahead and used the Needswings cork gaskets. But I think your correct and the cork got damaged and they are not sealing completely.

Les

 

If your running stock mani's then use the factory metal gasket.

 

I don't often agree with Bulldogger but that is good advice. What most on here don't do is go back after a few days and retighten the mani screws after the heat has loosened the screws. When you first took out the stock mani's the screws had a loctite material on them. Either use something similiar or just easier to check back every so often and make sure they are tight. Loctite is too permanent in my opinion for those screws. Your probably going to take them off again at some point.

 

good morning, happy 4th of july!
were running up north to go canoe'ing in a few minutes but i can get some gaskets out to you on monday

 

Dont use the locktite, RED use the thread locker Blue works and is not so hard - permanent. Youll like it better, WOODY doing the 4th.

 

You learn something new every day! I didn't know they had a form of locktite from the factory. I'll get it right the next time with a little locktite blue. I did re torque the manifold screws once after the initial instal and just forgot about them. I assumed once was enough. Pictures will be coming when I get back from vacation. Now I'm thinking about the supercooler and lower thermostat. Living in P.R. means it's never cold.

Thanks for all the reply's and advice.

Les

 

It is hard to agree with someone who is always right.

 

I was on vacation last week and got home last night. While in the states I went ahead and got new gaskets at the local MB dealer. $20 sound alright? Today I took the upper manifolds off and the drivers side was wet with gas all over. The passenger side was dry. So as you can imagine, no scraping off gasket material on one side and lots of careful scraping on the other. It really wasn't too bad, just real hot work. Naturally after getting it together I wanted to go for a ride but beach traffic kept me home until the sun started going down. (poor me!) Anyway, I just got back from a long test drive and the gaskets did the trick. I found putting the adhesive on the manifold side of the gasket and sticking it to the underside easier than on the runner itself. I used Locktite Blue on the threads this time to prevent a repeat of the problem. It seems a P0505 is a boost leak. Thanks again for all the good advice.

Les

 

I thought I’d post up pics of the upper manifold gaskets. The originals and the Needswings cork gaskets. The broken cork gasket was the one that wasn’t leaking. It got broken during the removal. The other is the culprit. It was leaking like a sieve. The leaks were caused by not using locktite on the threads. The bolts were torqued to 10 foot lbs. and retorqued a few days later but backed out anyway. USE SOMETHING TO LOCK THEM IN. I used locktite blue this last instal.

Les