FordTudor1931
Member
Looking for opinions and advice for a possible engine issue.
I have had the 1931 Tudor for about three years and I know nothing about the history of the car or the engine. In the last few months a ticking noise has developed in the area of cylinder three or four. To my untrained ears it sounded like valve noise.
To try to figure out what to do (if anything) I started with a compression test which showed 59, 59, 40 and 61 psi. There is something going on in cylinder # 3! To confirm the compression, I did the testing twice more with almost identical result.
Next step would have been a leak down test, but I couldn't get my hands on a tester so I tried just compressed air into the cylinders to see if I could identify any leaking. Cylinders 1,2 and 4 lost pressure very slowly, while #3 lost air quickly through the exhaust at TDC when the valves should have been closed. What am I dealing with here? A sticking or burned valve or something else?
My ideas for next steps would be to remove the valve cover and try to see what is happening there. If that is not successful, removing the head would be the next step, but I would like to avoid that if possible.
What, if anything, am I missing with the diagnosis and what other options would there be for attacking the issue?
I have had the 1931 Tudor for about three years and I know nothing about the history of the car or the engine. In the last few months a ticking noise has developed in the area of cylinder three or four. To my untrained ears it sounded like valve noise.
To try to figure out what to do (if anything) I started with a compression test which showed 59, 59, 40 and 61 psi. There is something going on in cylinder # 3! To confirm the compression, I did the testing twice more with almost identical result.
Next step would have been a leak down test, but I couldn't get my hands on a tester so I tried just compressed air into the cylinders to see if I could identify any leaking. Cylinders 1,2 and 4 lost pressure very slowly, while #3 lost air quickly through the exhaust at TDC when the valves should have been closed. What am I dealing with here? A sticking or burned valve or something else?
My ideas for next steps would be to remove the valve cover and try to see what is happening there. If that is not successful, removing the head would be the next step, but I would like to avoid that if possible.
What, if anything, am I missing with the diagnosis and what other options would there be for attacking the issue?
