displaying posts 1 to 4 of 4

Author Subject: Bent valves???
kriz5176

Newbie

Location: preston

Registered: 06 Aug 2010

Posts: 28

Status: Offline

Post #1
I have got the valves out of the head. Stripped down because the belt slipped a notch. After being retimed, it's now tapping slightly, multitudes of blue smoke on startup and dog rough. Although the compression was alledgedly tested at the garage, we weren't convinced and have taken the head off. My query is - is it obvious if a valve is bent or is the deviation so slight it had to be checked by a machine shop.

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chris
Posted 19th Aug 2010 at 00:01
brownboy

Seasoned Pro

Location: congleton

Registered: 13 Oct 2008

Posts: 1,371

Status: Offline

Post #2
i would say get them checked from what i have seen on here mate
Posted 19th Aug 2010 at 00:15
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #3
They can be ever so slight to need checking with a DTI gauge, also simply replacing the valve can often still have a tap, the seats do need checking and cutting if needed, worst case is that a valve guide requires replacement.

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Bring on the Trumpets.

Posted 19th Aug 2010 at 00:25
kriz5176

Newbie

Location: preston

Registered: 06 Aug 2010

Posts: 28

Status: Offline

Post #4
Just a quick update. Had the valves checked and there were 7 bent exhaust valves. At least we know what the problem was.

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chris
Posted 20th Aug 2010 at 23:51

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