VRUS- Cams installed today
03-18-2007, 10:25 PM
#26
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Butt Dyno says it feels good mid to top.
The first stage is to torque the long bolts to 10 NM and the short to 15NM. The second stage is +90 degrees on the long bolts while following the pattern. The right side has 18 bolts and the left side has 20. A torque angle gauge is recommended to do the job, so I wrote down the pattern and checked them off one by one to avoid mistakes. Everything else up to that point was quick and easy so that's why i think the torque sequence was the hardest or most time consuming of all the required steps.
The first stage is to torque the long bolts to 10 NM and the short to 15NM. The second stage is +90 degrees on the long bolts while following the pattern. The right side has 18 bolts and the left side has 20. A torque angle gauge is recommended to do the job, so I wrote down the pattern and checked them off one by one to avoid mistakes. Everything else up to that point was quick and easy so that's why i think the torque sequence was the hardest or most time consuming of all the required steps.
03-18-2007, 10:59 PM
#27
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It's a torque to angle method of tightening a bolt, basically a quarter turn of the ratchet. Similar to the method used for the crank pulley the difference being that the crank pulley bolt is torque to yield and requires a new bolt as per MB latest instructions.
03-18-2007, 11:30 PM
#28
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E-ZGO 53hp., 1999 E 430 sport, 2004 E 55, 2008 Tahoe LTZ on 24"s
Bump stick
rflow Nice, Thanks for the pics, did you ever get the lift and duration spec? and was there any change in the hydraulic element in rocker arms? I have heard that they plan to close Moroso this summer for a year to do a major face lift.
What is that way back by the fire wall?
What is that way back by the fire wall?
03-18-2007, 11:54 PM
#29
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Originally Posted by Yacht Master
What is that way back by the fire wall?
Last edited by rflow306; 03-19-2007 at 12:00 AM.
03-19-2007, 01:48 PM
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S600TT, R350
Looks like a solenoid for the A/C system made by the NOS corporation of Germany
03-19-2007, 02:18 PM
#35
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No as per the instructions you use the existing ones unless you find something wrong. All bearings looked good, stock cam had an even pattern on all lobes. Engine has only 20,000 miles so i wasn't expecting any wear. I also did a compression test which came back stong, weakest cylinder had 163 and the strongest had 168.
03-19-2007, 02:53 PM
#39
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No bearings, it looked like a bearing pressed into the head and the camshaft tower but now i can't be sure. That would mean in the event of to much wear then you need to remove the head and buy a new camshaft tower? I agree with Vader that is crazy.
03-19-2007, 03:03 PM
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03-19-2007, 03:13 PM
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S600TT, R350
If the surface is damaged, the head is junk.
It's just how it is designed. Most motors now-a-days are designed to be thrown away, not rebuilt. Ease of manufacture and assembly are the priorities for OEMs.
They are in business of selling NEW cars, not fixing old ones.
It's just how it is designed. Most motors now-a-days are designed to be thrown away, not rebuilt. Ease of manufacture and assembly are the priorities for OEMs.
They are in business of selling NEW cars, not fixing old ones.
03-19-2007, 03:19 PM
#42
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If the surface is damaged, the head is junk.
It's just how it is designed. Most motors now-a-days are designed to be thrown away, not rebuilt. Ease of manufacture and assembly are the priorities for OEMs.
They are in business of selling NEW cars, not fixing old ones.
It's just how it is designed. Most motors now-a-days are designed to be thrown away, not rebuilt. Ease of manufacture and assembly are the priorities for OEMs.
They are in business of selling NEW cars, not fixing old ones.
03-19-2007, 03:30 PM
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2017 Charger Hellcat
03-19-2007, 03:39 PM
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S600TT, R350
How about the "Muffler Bearings" did you have to change those
03-19-2007, 06:25 PM
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05 ML-500 , 03 CLK5.5 AMG has left the Garage
Cam Journals
Aluminum is harder than , copper backed / Babbit inserts, For years Manufactures were scared of low hour failures with out some sort of bearing inserts on the early Aluminum casting. Todays Die cast, procedures & new alum alloy mixtures have , lead them to a much stronger casting than one would thing. I've attached some pictures of the cam cradle / cam shaft bridge assy ,with the rocker arms. When I get the heads back , from the guy who does the porting for me . I'll have more pictures of the saddles in the head for the cams.
03-19-2007, 06:43 PM
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2003 E55 AMG
Albert,
That's awesome! Glad to hear they went on without any issues. It's always good to have friends that you can depend on for help... Not too many guys would tackle this in their garage!
Can't wait to hear the dyno results.. Hopefully it will move a bit of the power up from the bottom and allow you some better traction out of the hole and then stronger mid-to-high end.
That's awesome! Glad to hear they went on without any issues. It's always good to have friends that you can depend on for help... Not too many guys would tackle this in their garage!
Can't wait to hear the dyno results.. Hopefully it will move a bit of the power up from the bottom and allow you some better traction out of the hole and then stronger mid-to-high end.
03-19-2007, 07:46 PM
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04 E55
Aluminum is harder than , copper backed / Babbit inserts, For years Manufactures were scared of low hour failures with out some sort of bearing inserts on the early Aluminum casting. Todays Die cast, procedures & new alum alloy mixtures have , lead them to a much stronger casting than one would thing. I've attached some pictures of the cam cradle / cam shaft bridge assy ,with the rocker arms. When I get the heads back , from the guy who does the porting for me . I'll have more pictures of the saddles in the head for the cams.
PTE...thanks for the pictorial education...never knew metallurgy came so far as to replace a traditional babbit bearing...cool !!!
03-19-2007, 09:56 PM
#50
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Aluminum is harder than , copper backed / Babbit inserts, For years Manufactures were scared of low hour failures with out some sort of bearing inserts on the early Aluminum casting. Todays Die cast, procedures & new alum alloy mixtures have , lead them to a much stronger casting than one would thing. I've attached some pictures of the cam cradle / cam shaft bridge assy ,with the rocker arms. When I get the heads back , from the guy who does the porting for me . I'll have more pictures of the saddles in the head for the cams.
