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MD540iT MD540iT is offline
I'm working on it....
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Join Date: Mar 2003
Location: Denver
Posts: 82
Originally Posted by kdjones2000 View Post
Just let your lifters fully pump up. It will be noisy for a while, but smooth out eventually.
well I thought about that but it didn't sound like lifters, atleast not that ticking sound I have heard on other 944s, and I didn't hear that sound the first time it ran. didn't hear any valvetrain noise or injector noise.
again this was a LOUD smack sound. an OH ***** kinda sound.

so I kinda have 2 theories:
1. for some reason the valves were returning slowly initially and then would "pop" back up thus smacking the cam.

2. related to the lifters not being pumped up, could there be a "gap" between the lifters and the cam, and when the lobe comes around, it "smacks" the lifter?

Side note: when I first started the car last week, I flooded the cam tower with oil through the caps. (then closed them)
Old 10-05-2019, 10:46 PM
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