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Author Topic: Too many rpm  (Read 2209 times)

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Offline 78 T/A

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Too many rpm
« on: September 10, 2006, 09:46:57 PM »
Last night I was lightin 'em up in first gear to 5000 rpm then went to bang second and didn't find it (being a 28 year old tranny).  Well, my foot had other ideas and hit the floor for a split second until it realized she wasn't in gear.  My tachometer sky rocketed to almost 6500 rpm.  I got it home and opened the hood and noticed a tapping coming from the valves.  Now, before I almost blew 'er up, it had a very slight tapping noise but nothing out of the ordinary.  Now its a more noticeable sound and I'm not an engine builder so I was wondering what you guys thought.
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78 T/A-W72 400, 4-speed, WS6

13.80 @102.8

Offline evilways

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Too many rpm
« Reply #1 on: September 26, 2006, 03:53:35 PM »
Possibly a broken valve spring ....how noisy is it now, or have you gotten it checked out?
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peed limits....they're just suggesstions,..right?

Offline 78 T/A

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Too many rpm
« Reply #2 on: September 26, 2006, 06:23:32 PM »
I haven't had it checked out yet but it seems like it randomly taps only when cold.  Once the engine's at operating temp. it makes all the right noises :lol:
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78 T/A-W72 400, 4-speed, WS6

13.80 @102.8

Offline HughJass

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Too many rpm
« Reply #3 on: September 26, 2006, 08:13:29 PM »
Maybe a rev limiter is  your next purchase!!
Glad nothing seems to be broke.
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Light travels faster than sound. That's why some people appear bright until you hear them speak.



79 W72 WS6,  work in progress - nicknamed Lucy

Offline 78 T/A

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Too many rpm
« Reply #4 on: September 26, 2006, 09:28:30 PM »
Sounds like one helluva good idea :lol:  :lol:  :lol: he he
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78 T/A-W72 400, 4-speed, WS6

13.80 @102.8

Offline Eagle 1

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Too many rpm
« Reply #5 on: September 27, 2006, 09:36:17 PM »
Quote from: "musclecar917"
I haven't had it checked out yet but it seems like it randomly taps only when cold.  Once the engine's at operating temp. it makes all the right noises :lol:

You may need to re-adjust your lifters.  Sometimes the rocker arm gets a little worn and you will hear small tap when its cold.
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