Porsche 911 Engine Assembly Guide Part 21

Porsche 911 Engine Assembly Guide Part 21 - Camshaft Parts and Prep

Рет қаралды 625

4 ай бұрын

This is Part 21 of the COMPLETE 911 engine assembly series that goes over the prep for the camshaft install and timing, including parts you might want to consider replacing at this time.
Here is a link to the timing tools we used:
Camshaft locking and timing tool - amzn.to/4aT9lSJ
Connecting Rod + Camshaft kit: amzn.to/3U4E4oj
Here is the full playlist for this series: • The COMPLETE Porsche 9...
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Пікірлер: 12

@jeremypringle5368 3 ай бұрын

Don’t forget when you get to assembly to show the variocam+ intake cam/lifters and if that is why there are 2 springs on the intake valves. Inquiring mind(s) want to know! 😝

@HelpMeDIY 3 ай бұрын

+@jeremypringle5368 😂👍

@meirschwartz8554 3 ай бұрын

I’m at the same stage with my build. Going to do timing today. Take in mind that if you are using the torque book, it might have incorrect information regarding the intake camshaft bolt. It should be 50 Nm and 110* and not 30 Nm and 90* as the book says.

@miketdavies 3 ай бұрын

Also, take your timing tool out before you do the 110 degree spin, or you'll potentially tweak it or break a cam! Hopefully you have the cam locks, though I think you can get away with not using them. I reused my 50k mile lifters and cradles, but the engine blew up shortly afterwards - I can sell you mine LOL! Stuck intake lifter may have actually been the problem.

@HelpMeDIY 3 ай бұрын

+@meirschwartz8554 thanks! I haven’t researched the torque specs yet. Where did you get those numbers from?

@HelpMeDIY 3 ай бұрын

+@miketdavies yikes! Thanks for the info! 🍻

@meirschwartz8554 3 ай бұрын

@@HelpMeDIY I’m building an Heartec 4.1 engine machined by Slakker Racing. I got the information from Brandon at Slakker, Lee Jenkins at Heartech, and it also matches the information in the Bentley book pages 15-65 and 15-70.

@warrenlucier5796 3 ай бұрын

Guess I'm 1st in the comments: (1) for the intake lifter buckets, take your fingernail and see if it catches on them and if it does then replace them. (2) Replace the parts behind the camshaft timing adjuster, due to oil the pressure can be effected, due to wear, causing potential timing fluctuations. The intake camshaft has variable lift and oil pressure regulated by the DME and the solenoid does the switching to the other cam lobe as need be. This allows the cams to be quite mild @ idle and low RPM's and then kick butt as required, unlike it used to be mild or wild. The lifter carrier gets the wear in those slots from the pressure rocking the buckets as the camshaft rotates and that pattern cause some binding. The Variocam adjusters have multiple chambers in them and paddles which fill and empty oil as required for advancing/retarding timing. The cam caps are align bored in the heads, just like the engine case halves. Hope this helps you out.

@HelpMeDIY 3 ай бұрын

+@warrenlucier5796 thanks for all the info! 🍻