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Dohc focus overheating

I have mazda 1997 323 engine dohc 16 valve with automatic transmissions, overheated and engine died, i replace all spark plug wires, and replace the thermostat, every time i started up engine turn except one cam shaft not turning.. do i need to check all the valves and check also the crack shaft

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  • Mazda Master
  • 5,341 Answers

You need to take off the timing belt (or chain) cover and see why the one camshaft is not turning. Maybe the belt for that cam broke or the cam has seized from a bad cam bearing. One camshaft should be for the intake valves, the other cam is for the exhaust valves.

Posted on Feb 13, 2014

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SOURCE: 97' Mazda 626 6cyl Overheating.

While you have it at the radiator repair shop, have them flow test the radiator. They should have information on the flow of a new radiator and then you can compare the two. They should be able to tell you if your flow rate is  high enough to do the job.

Posted on Oct 02, 2008

sudel
  • 90 Answers

SOURCE: overheating

Fairly common problem so i would say it is definitely your head gasket. Sorry.

Posted on May 20, 2009

alicantecoli
  • 22219 Answers

SOURCE: I need the timing marks

please forgive me but as iam getting older my memory isnt what it was but i seem to remember two slots in the back of the cam but it could be a mark on the rear cam cap,if not sure here then do it with no timing marks -- its easy make sure no1 piston is down halfway so valves clear pistons then look at the cams and start with the inlet no1 which should be just closed and the cam lobe moving away from the tappet ,and now the exhaust will be coming around to make contact with the tappet ,then look on the cam /cam caps keyway or whatever for anything resembling the timing marks .Sorry i just do so many makes of vehicle i cannot remember them all i just use my 6 yrs or motor vehicle technicians course ,although its all out of date now the basics are still the same and i apply this basic to any vehicle and it always works .right last question this one iam off to cultivate the garden and relay my irrigation pipes

Posted on Jun 05, 2011

Testimonial: "that is very helpful info I just want to thank you for your help I wasn't sure of the marks because it has intake and exhaust marks "

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2 Answers

If timing belt breaks ,will it bend the valves


I looked at interference engine list.
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1 Answer

How to replace the timing belt on a 1994 mazda 929 3.0 dohc 24 valve engine


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1 Answer

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