It's been awhile since we had some real tech talk..or major discussions...somehow I noticed more personality discussions.., and aesthetics
So thought I'd mention what I've been up to lately when my ng900 turbo. If anyone would like to do some light reading.
Did a head swap for a few extra ponies. Running a solid cam follower head with volvo 850 valves, and volkswagen springs for 10k rpm if I ever need it, and using non-blowable copper head gasket.
Anyone interested in the general task for replacing the head...here goes; install is generally the reverse.., and after all the right tools...should take no more than a weekend. Did a few pics...but thought I'd post just the hard core facts.
1. pull the fuse to your fuel pump, and start the car....run out of fuel clears the fuel rails. pull the battery negative cable
2. drain fluids
3. pull the throttle body cover, and intake filter housing
4. pull applicable electrical connections, fuel regulator, rail, and fuel injectors
5. pull the intake manifold
6. pull the applicable vacuum lines and electrical cable, DI cassette, and delivery pipe
7. pull thermostat and the hoses to housing
8. pull the downpipe from turbo housing
9. pull the turbo from the exhaust manifold
10. loosen the serpentine belt
11. remove the power steering pump and keep the hose connected
12. pull the exhaust manifold
13. remove hoses running to the head
14. remove the oil filler tube
15. remove the head cover
16. remove the spark plugs
17. setup timing marks and make sure you're at top dead center on #1 piston
18. mark the chain near the timing marks
19. remove the timing chain tensioner
20. remove the cam sprockets
21. remove the head bolts
22. check for anything that may be still connected to the head.
As mentioned in the above..install is generally the reverse...
The copper head gasket was simple...spray it down with copper sealant, let it sit over-night.., then spray it down and let it dry to a slight tacky feel.., place it on the block and sit the head on it overnight with the bolts semi-tightened. Torque your head bolts in a circular pattern from the middle head bolt.., then make another pass to check the torque.., then spin the bolt another quarter turn or so...using the same torque sequence.
(edit) the bolt is actually turned an additional 90 degrees after the 2nd torque sequence.
Use the setup time to install the other parts back on .., and would be a good time to replace thermostat.., head cover gaskets., pcv gasket.., and inspect/replace the serpentine, and water hoses.
Review for comment.., and holler back ..
regards
So thought I'd mention what I've been up to lately when my ng900 turbo. If anyone would like to do some light reading.
Did a head swap for a few extra ponies. Running a solid cam follower head with volvo 850 valves, and volkswagen springs for 10k rpm if I ever need it, and using non-blowable copper head gasket.
Anyone interested in the general task for replacing the head...here goes; install is generally the reverse.., and after all the right tools...should take no more than a weekend. Did a few pics...but thought I'd post just the hard core facts.
1. pull the fuse to your fuel pump, and start the car....run out of fuel clears the fuel rails. pull the battery negative cable
2. drain fluids
3. pull the throttle body cover, and intake filter housing
4. pull applicable electrical connections, fuel regulator, rail, and fuel injectors
5. pull the intake manifold
6. pull the applicable vacuum lines and electrical cable, DI cassette, and delivery pipe
7. pull thermostat and the hoses to housing
8. pull the downpipe from turbo housing
9. pull the turbo from the exhaust manifold
10. loosen the serpentine belt
11. remove the power steering pump and keep the hose connected
12. pull the exhaust manifold
13. remove hoses running to the head
14. remove the oil filler tube
15. remove the head cover
16. remove the spark plugs
17. setup timing marks and make sure you're at top dead center on #1 piston
18. mark the chain near the timing marks
19. remove the timing chain tensioner
20. remove the cam sprockets
21. remove the head bolts
22. check for anything that may be still connected to the head.
As mentioned in the above..install is generally the reverse...
The copper head gasket was simple...spray it down with copper sealant, let it sit over-night.., then spray it down and let it dry to a slight tacky feel.., place it on the block and sit the head on it overnight with the bolts semi-tightened. Torque your head bolts in a circular pattern from the middle head bolt.., then make another pass to check the torque.., then spin the bolt another quarter turn or so...using the same torque sequence.
(edit) the bolt is actually turned an additional 90 degrees after the 2nd torque sequence.
Use the setup time to install the other parts back on .., and would be a good time to replace thermostat.., head cover gaskets., pcv gasket.., and inspect/replace the serpentine, and water hoses.
Review for comment.., and holler back ..
regards