<VV> Broken Camshaft ?

[Daniel Monasterio González]

IMO, not a broken camshaft but, an open valve tell me on a loose valve
seat or valve grip at valve guide. Been there in both cases.

Daniel Monasterio

On 12/04/13 18:59, "John Howell" <32chevy at 0306.org> wrote:

>                        I have a 140 hp that I have been having trouble
>getting it to run smooth.  All four carbs have been rebuilt, new fuel
>pump, new Clark`s fuel filter in front of firewall, new plugs and wires,
>rebuilt distributor.  All of this had little effect, it would run good
>sometimes and then bad, really erratic. Compression test showed # 1 -
>155, # 2 - !55, # 3 - 154, # 4 - 165, # 5 - 154, # 6 - 157.    I pulled
>the tappets on # 4 and found that the exhaust tappet had lost the keeper
>wire and the internal parts were just floating around but still there,
>the keeper wire was missing, I replaced the bad tappet, put it all back
>together but it still ran bad.
>                       Then I decided to check all the tappets so I
>started on the passenger side with number one, three and five all looked
>good so I moved over to the other side then there was old number four,
>the bad apple.   You are supposed to be able to adjust #4 exhaust next
>but that valve was being held open and # 4 intake was real loose, just
>the opposite to what it should be with the crank set to zero and # 1
>firing!
>
>                        Question: Could the camshaft be broke and
>causing some valves to be out of time?  Could the missing keeper wire
>have caused the camshaft to brake?
>
>                        Thanks
>                        John Howell
>                       `66  Corsa 140/ 4   Convertible
>
>                        I need to be driving this car!
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