phughes69

I just got done adjusting the valves on my boat. Not something I would want to do on a regular basis. To make it easier this time I took the whole turbo off at the riser to manifold joint. Last time I did it I took the turbo off the riser ( to get the turbo off I had to take the exhaust pipe and turbo heat shield off to get to the bolts that hold the turbo to the riser). This time all I had to doo was take off the bolts that hold the riser to the manifold. I also had to take the intercooler off so I could the the outboard turbo off since the outlet is about 1/8 in from the intercooler inlet. Now both motors are good to go. Now all I have to do is change the oil in both motors this week.

phughes69

more pics

Tinkerer

WOW - I will stick with naturally asperated engines 509 CI 650+ HP

Rookie

iTrader: (4)

Damn!
I have had to replace 5 rocker studs on 5 seperate occasions this year and readjusted all rockers for added security, but now I feel fortunate.

Nice setup though!

phughes69

Ok after adjusting the valves I think they are still a little noisy. the cam is a hydraulic flat tappet. The rocker arms are Crane gold, except for 2 rockers arms that the previous owner replaced because the pushrod cups were scored. The 2 new rocker arms are blue. The cam and lifters are new. I adjusted them to 0 lash and then 1 full turn of the adjusting nut. What brand of rocker arms are blue? What do others lash their rocker arms to?

phughes69

Here is the latest update on my valve train situation. After taking out the boat last Thursday, I thought the valves still sounded a little noisy. I decided that I wasn't comfortable with how it sounded and put it back on the trailer. Yesterday I took the turbos off again and checked the rockers, nuts, studs, guide plates and valve tips. The motor has all Crane gold race rockers except for two which on e is a Gereral Kinetics and the other is a Crane, except it has a wider body that the others. I checked the touque on all the studs and found none loose. I checked all the adjusting nuts for crack and they were all OK. All the pushrods were OK, except they have pushed in ends. I replace them over the winter with a good chrome moly 1 piece pushrod. All the crane rockers felt OK when I pivoted their fulcrums and none felt gritty and all the tips felt and looked OK too. I think I found the problem was the General kinetics rocker and the wide body crane rocker. The General Kinetics had a tip the was not parallel to the fulcrum, which caused the tip to start to cut a groove into the body. The crane rocker had some sreious flat spots on the tip. The tip surface was wavy parellel to the centerline. I ordered 2 new ones from Summit last week and hope to have them soon. This just goes to prove to me that no matter what someone says about things being right ( the previous owner) they cant be trusted. I will feel better knowing that part of the valve train is put back together right and I did the best I could at this time. Here is a picture on the Gereral Kinetics junk rocker.

Strip Poker 388

iTrader: (6)

I have some from Luniti that are blue also.just for your info.

Rob