I have just bought an 69' Mach1 with 351M engine. I have an issue. when I start the engine the oil warning light go for 2-3s on and then off when the pressure idle reach middle of the scale (between L and H). Is it something I should be worried about?
that is my first Mustang and don't know what I should think about. Engine runs very smoothly...
Is it the normal behawior in Mustangs?
what could be the reason for it? Is it the oil, oil filter or maybe the pump which has problem with building the pressure up?
That's interesting, it sounds like you have an oil gauge and a light? My 69 Mach has a gauge but no light, and a light is not shown on the wire diagram. I'm wondering where your warning light is located in the dash? Mine has Brake Warning and Seat Belt lights in the Fuel/Temp cluster. I have heard there are different options like Deluxe Complete.
That's interesting, it sounds like you have a gauge and a light? My 69 Mach has a gauge but no light, and a light is not shown on the wire diagram. I'm wondering where your warning light is located in the dash? Mine has Brake Warning and Seat Belt lights in the Fuel/Temp cluster. I have heard there are different options like Deluxe Complete.
It is on the right side where the fuel and temperature gauge is - maybe I am wrong and this is not an oil warning light?
BTW the temperature gauge doesn't work but the cooling system is ok - I have the system rebuild to electrical vents and they are working when the engine is warm/hot...
On a side note, your Sig states 351M. The 351C/M engines have the upper radiator hose straight up off the block then running forward to the radiator, a Windsor has the radiator hose coming off the intake almost straight forward. Check wich one you have and change your signature to match.
351w
351c/m
It would be more normal to find a 351c than a 351w in a Mustang.
Thanks?
my description is based on the engine codes decoders for all mustangs. I understood the M has nothing to do with Windsor and Cleveland but it fits to the power version.
BTW was such an shaker option by mach1 or is it an mode to let it looks like cobra jet?
In 1969 there were 2 versions of the 428CJ- Q and R. Q had the standard non-functional Mach 1 style scoop and R had the functional Shaker scoop. BTW- both engines were rated at the same 335 hp.
The Shaker scoop was optional on the 351 2V (H), 351 4V (M) and 390 (S). Unlike the 428CJ there was no special letter designator for these engines when Shaker equipped. You must look at the Marti Report to see if the Shaker was factory installed.
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