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-   -   3.0 to 3.2ss questions (http://forums.pelicanparts.com/911-engine-rebuilding-forum/885736-3-0-3-2ss-questions.html)

mreid 10-12-2015 11:11 AM

Got them both within the spec of 5.6, just over slightly when I rock back and forth. Reinstalled the tensioners and after lunch I'll install the rest of the rockers and adjust the valves. Thanks for all your help, Bruce! You have been an incredibly asset.

cgarr 10-12-2015 11:31 AM

Were your heads surfaced? they look like it so should all be level: to avoid cam binding all heights must be the same, is that the problem your having? cam turning hard after torqued?

mreid 10-12-2015 11:56 AM

They were. Once I got some oil in there I could turn them by hand with some effort.

jpnovak 10-12-2015 12:33 PM

Mark,

My method for timing the new bolt style cams is to use a small drift and place it in an adjacent hole. Use the drift to pry the outer cam sprocket against the inner lock sprocket. You can use the drift to either side of a center tooth depending on location. This allows you to spin the cam in either direction to get the desired lift.

The early style cams are much easier (IMO) to adjust since you just turn the actual cam.

KTL 10-12-2015 01:23 PM

The bolt-end cams can be turned with the bolt head. You just have to strategically put the bolt in the cam at the right time, w/out the big fat washer in place. Basically you use the specialty counterholding tool to hold the cam (obviously the indexing hub, sprocket and pin must be in place) and snug the bolt into the cam snout enough to create a bit of thread interference like double-nutting. Then pull the pin and rotate the cam as desired to change the TDC overlap lift. Hold the cam with the nut, put the pin back in, put the sprocket holding tool in there, remove the bolt so you can install the big washer, put the bolt back in snug, rotate engine 360 degrees and check your lift spec. Repeat as necessary.

cgarr 10-12-2015 05:30 PM

And an old spark plug works good to pull the pin!

Tippy 10-12-2015 05:49 PM

Quote:

Originally Posted by jpnovak (Post 8833113)
Mark,

My method for timing the new bolt style cams is to use a small drift and place it in an adjacent hole. Use the drift to pry the outer cam sprocket against the inner lock sprocket. You can use the drift to either side of a center tooth depending on location. This allows you to spin the cam in either direction to get the desired lift.

That's exactly how I did mine.

Tippy 10-12-2015 05:50 PM

Quote:

Originally Posted by cgarr (Post 8833519)
And an old spark plug works good to pull the pin!

Like a champ

mreid 10-12-2015 06:05 PM

I have a mini-slidehammer tool to pull the pin (the modern gear head can't have too many gimmicky tools). I made most of my tools, but this pin puller work great when the pin is pinched tight. I ended up cranking the bolt down and then (without the washer installed) I was able to make small adjustments in either direction until it was perfect.


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