Install and Break In Procedures for New Camshaft Help
Hello all! So in the pursuit of a better running and quieter engine I decided to replace my solid lifter cam of unknown specs with a new camshaft and hydraulic lifters..
This is sort of a continuation of the following threads:
For better drivability...
Help Needed: Rocker Arm Identification...
I talked to Comp Cams and Lunati, but went with Comp Cams because my roller rockers appear to be older Comp Cams units (see above link). Comp Cams recommended the XE268H which is what I went with.
Most the parts have arrived including the following:
- Priming Rod - so I can make sure oil is flowing prior to fire up
- XE268H Cam and Lifter kit
- Timing gasket and Seal kit
- Oil Slinger
- Clevite Bearing Gaurd Assembly Lube
After inspecting my valve springs and realizing they are dual spring, I decided that I'm going to place an order for the matching springs, locks, retainers, and valve seals too while I'm at it. I'm debating about replacing the timing chain. It's a double roller and seems to feel pretty tight.
I am a bit worried that I did not find an oil tab behind the cam gear. I don't know if that's a big deal or not. Since I didn't find one, I ordered the oil slinger for some insurance.
When tearing down my valvetrain, I found that the rocker shafts were installed upside down. The small oil holes were facing up. From what others have told me here, the rocker shafts small (tiny) oil holes should be facing down and toward the exhaust. Correct?
Does anyone have a good step by step procedure for removing and installing the cam? Actually, that part seems pretty straight forward. Lube all the lobes with supplied lube. Lube the bearings, and carefully slide the shaft in without banging the bearings, right?
What about the timing chain cover, anything special or noteworthy when bolting that back on? I know that some bolts go in the water jackets. Do I need to do anything special with those bolts? Any tips on installing the intake back on as well?
I've read several threads on break-in. Seems straightforward. Put everything back together, make sure the distributor is in the right firing position, prime the fuel (no problem mine is electric), fire it up, and run it for 20 -30 minutes at 2500 RPM or higher. Is that correct?
I plan to be doing this work sometime soon. I do need to order the springs first. I was thinking of doing it 4th of July weekend or something. My weekends tend to run really short. Always busy.
I've attached a pic of my new parts. Yay!
Any tips, tricks, or advise is highly appreciated. I've already learn tons from you guy.