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02-18-2018, 07:03 PM | #1 |
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Something wrong
The A is losing power,i thought it had to do with the ignition so i checked everything and reset the timing but still no power.
At idling it looks like it is running on 3 cillinders,all 4 have a spark. Put new plugs in and made a short test drive,pulled the plugs and number 3 was still new,checked it but there was a good spark. I don't have a compression testergauge but i put my thumb on the plug holes and numberb 3 and 4 have little compression,1and 2 have good compression. So there is something serious wrong,gonna make an appointment with the model A specialist and make my problem his problem........fingers crossed René
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02-18-2018, 07:12 PM | #2 |
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Re: Something wrong
Sticking valve(s)??
Paul in CT |
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02-18-2018, 07:18 PM | #3 |
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Re: Something wrong
No,can see them moving
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02-18-2018, 07:29 PM | #4 |
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Re: Something wrong
Check the torque on your head bolts. May be too late if the gasket has let go.
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02-18-2018, 07:36 PM | #5 |
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Re: Something wrong
There is no cooling fluid in the oil or oil in the cooling.
The head has to come off to see whats wrong. I am afraid there's a hole in the pistons,i have lend the A to my son in law and i think he has driving it with the spark at full retard................
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02-18-2018, 08:05 PM | #6 |
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Re: Something wrong
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02-18-2018, 08:36 PM | #7 |
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Re: Something wrong
Check your distributer body (cap). They have a tendency to get an internal short. Meaning you could be firing two spark plugs at the same time. I've had this happen a few times. An Ohms tester will give you the answer. Good luck René. Jeff
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02-18-2018, 10:42 PM | #8 |
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Re: Something wrong
René- If you want to do a quick diagnostic test...
Remove all the spark plugs. Blow some compressed air into a cylinder through the spark plug hole (set the valves to the closed position for each cylinder that you test). A rubber-tipped air blow gun that covers the entire spark plug hole works best for this test, or improvise. If air comes out of the neighboring spark plug hole, there's a good chance that it's a blown head gasket (like what Tom said). If a lot of air comes out of the oil fill tube, then a hole in the piston is possible. If air rushes to the intake or exhaust manifolds, then its a burned or sticking valve. If your son-in-law did cause this problem, and he is still of this Earth, then you sir are a much better man than I. Veel geluk Alex
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02-19-2018, 12:33 AM | #9 | |
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Re: Something wrong
Quote:
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1929 Model AA - Need long splash aprons! |
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02-19-2018, 02:09 AM | #10 | |
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Re: Something wrong
Quote:
Thanks all for the tips but i'll leave it to the specialist....if the head gasket is blown,or the piston is damaged or the valves are burned the head has to come of anyway and due to my medical condition i am not able to do it myself. I will let you know whats wrong. René
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02-19-2018, 02:41 AM | #11 |
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Re: Something wrong
Sounds familiar.
Son in law drives car, it comes back defective. Never loan your girlfriend or your chainsaw, they always come back the same way...... fucked. |
02-19-2018, 02:56 AM | #12 |
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Re: Something wrong
René,
Is it possible to get some good photographs of the repair and the result of the problem. I think many on Fordbarn would be interested to see the pictures. Tony, Pleines oeuvres, France |
02-19-2018, 03:17 AM | #13 |
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Re: Something wrong
What's your exhaust manifold like? Many of them are warped!!!
Do the little collars line up between the block and the manifold ? often they are missing Number 4 drops down and causes a power loss |
02-19-2018, 05:14 AM | #14 |
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Re: Something wrong
The exhaust manifold is good,no leaks and collars are in.
The manifolds are new and machined bolted together as it should. I just deliverd the A at the specialist garage,they gonna look into the problem as soon as they have time,then give me a call what's wrong. If it is possible i will take pictures but don't hold your breath.......... René
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02-19-2018, 07:02 AM | #15 |
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Re: Something wrong
Low compression between back 2 cyl ,my experence tells me bad head gasket!!!
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02-19-2018, 05:37 PM | #16 |
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Re: Something wrong
Well....the mechanic did all the tests,looked with a camera into the cillinders but could not find a problem,tomorrow they gonna pull the head........i'll wait and see
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02-19-2018, 06:15 PM | #17 | |
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Re: Something wrong
Quote:
If it's a gasket leak between #3 & #4, after the head is off, you'll see circular "etchings" in the walls, adjacent to the gasket leak area! First warning of a leak there, is a 2 cylinder miss, for a few seconds, after start up & "some" abnormal water loss. A QUICK check for water in the oil: Hold a drop of oil on the dipstick, put a match under it, a nice yellow FLARE= NO WATER----A yellow FLARE, that spits out like a SPARKLER= WATER in the oil.---I tole you I wuz GOOD! BUT nobody believes me--LOL Bill Beenthere
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"THE ASSISTANT GURU OF STUFF" Last edited by BILL WILLIAMSON; 02-19-2018 at 06:20 PM. |
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02-20-2018, 05:50 AM | #18 |
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Re: Something wrong
Allright......head gasket is blown,everything else looks okay.
Ordered new gaskets,we do a total service at the same time,adjusting valves,clean out the oil pan etcetera. If i am right the torque for head studs is 55lbs...valve gap intake and exhaust both 0.015 correct me if i am wrong
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02-20-2018, 05:59 AM | #19 |
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Re: Something wrong
Well done René,
You can breathe again! |
02-20-2018, 11:00 AM | #20 |
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Re: Something wrong
I always use the copper head gasket and spray both sides with Copper Coat.
Be sure to torque in at least 3 or 4 steps, like 20, 35, 45, 55 lbs. and be sure to do several retorques after running the engine. |
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