Ignition Timing Mark Location
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Senior User
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From: Northern New Mexico
Ignition Timing Mark Location
On these FE/FT engines, where would the ignition timimg mark be located? Motors Manual for this period says it is on the "Damper" which I assume is one of the pulleys. Is that right? I have been searching without success.
The manual also says that if I pull the water pump off and expose the two chain pulleys (crank and camshaft) there are marks on both of them that, when aligned, will time the valves. Are valve timing and ignition timing the same position for pistons and valves?
There has to be a more visible mark somewhere exposed for ignition timing. I sure hate to pull the water pump just to time this engine.
I did a search on this forum and the 1960s truck forum which came up zero.
Any comments would be greatly appreciated.
The manual also says that if I pull the water pump off and expose the two chain pulleys (crank and camshaft) there are marks on both of them that, when aligned, will time the valves. Are valve timing and ignition timing the same position for pistons and valves?
There has to be a more visible mark somewhere exposed for ignition timing. I sure hate to pull the water pump just to time this engine.
I did a search on this forum and the 1960s truck forum which came up zero.
Any comments would be greatly appreciated.
Laughing Gas
Joined: Aug 2008
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These pics might help. Note the timing marks are on the damper, which goes over the crank, and the pointer is fastened to the timimg cover. I have seen dampers with only a TDC mark and a sheet metal degree scale instead of a pointer, so be aware there may be differences.
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Senior User
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From: Northern New Mexico
THanks,
I have Figure 36 in my Motors Manual. The other illustrations are new to me. So, I appreciate your posting them.
I did not know what the "Damper" was. I am guessing it is a harmonic balancer and is located behind a cover that is behind the belt pulleys. So, it looks like to time this engine the fan belt pulley and water pump have to come off to expose the damper. Is that right?
I have Figure 36 in my Motors Manual. The other illustrations are new to me. So, I appreciate your posting them.
I did not know what the "Damper" was. I am guessing it is a harmonic balancer and is located behind a cover that is behind the belt pulleys. So, it looks like to time this engine the fan belt pulley and water pump have to come off to expose the damper. Is that right?
Laughing Gas
Joined: Aug 2008
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No, you don't have to do all that. The damper (another name for harmonic balancer) is exposed. It goes on the end of the crankshaft where the guy's hand is in Figure 40.
The lower fan belt pulley is bolted to it. If you look down the front of the engine on the passenger side, you'll see the sheet metal pointer and the timing marks are on the outside of the damper. If you don't see the marks, rotate the engine and the marks will come into sight.
Figure 41 shows it, but the fan belt pulley has been removed (which you don't have to do).
The lower fan belt pulley is bolted to it. If you look down the front of the engine on the passenger side, you'll see the sheet metal pointer and the timing marks are on the outside of the damper. If you don't see the marks, rotate the engine and the marks will come into sight.
Figure 41 shows it, but the fan belt pulley has been removed (which you don't have to do).
Laughing Gas
Joined: Aug 2008
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Don't know, but as I see a pointer going to the pulley, I'd look very closely for any indication. I have a very old FE damper that merely has a little rivet head showing to indicate TDC.
Just guessing, but yYou may have two marks...one for TDC and one for the timing pointer to line up with at idle.....sort of like a motorcycle flywheel....or my 1952 John Deere 2-cylinder tractor.....
Someone else will have to chime in here.....I've never seen an engine set up like that.
Just guessing, but yYou may have two marks...one for TDC and one for the timing pointer to line up with at idle.....sort of like a motorcycle flywheel....or my 1952 John Deere 2-cylinder tractor.....
Someone else will have to chime in here.....I've never seen an engine set up like that.
Post Fiend
Joined: Mar 2004
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From: Union, Washington
The marks will be on the rear thick part of the pulley. You may have to clean it off to find them. The easiest way I know is to have the engine idleing and from underneath, use a rag with acetone or some other solvent on it and drag it on the pulley. FYI, I have never seen an FE damper that was not mark a mininum of zero to 30° and some 10°BTDC to 30° ATDC. But then all the FE's I have worked with were car motors.
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Post Fiend
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From: Union, Washington
Well, in my case I was always pickie about the way the engine looked when I bought a car or a junk yard dog. So they were never in real bad. But in a real dirty situation, as you say, a wire brush would be appropriate.
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Senior User
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From: Northern New Mexico
Yeah, it's there, on the pulley behind the belt- the scale and everything just like yoose guys said. So, thanks. I don't think I would have found it.
BTW, some jerk put the fan on backwards. You should see all the crud it blew into the radiator. No wonder it was running a little hot. Cooked some of the ignition wires and the vaccum advance is loose. Well, all these are small things. new ignition parts and a new vaccum advance. I might even put a timing light on it.
Thanks again for your help.
BTW, some jerk put the fan on backwards. You should see all the crud it blew into the radiator. No wonder it was running a little hot. Cooked some of the ignition wires and the vaccum advance is loose. Well, all these are small things. new ignition parts and a new vaccum advance. I might even put a timing light on it.
Thanks again for your help.
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