Re: BigKev's 1937 115-C Convertible Coupe
Posted by Karl On 2024/1/12 16:24:27
Kevin,
this engine has a very heavy cast block as you know. All Jaguar 6 cylinders maintain temperature quite well under normal driving conditions. And as long as there is enough air pressure to dissipate the heat in the engine compartment. Because that is the real problem and not the cooling of the water. When this engine is working under load and in summer temperatures, the block and cast manifold certainly heat up. Also the heated 4 Gal. Engine oil doesn't make this situation any better. If the air cannot be removed from the engine compartment quickly enough in this condition, overheating cannot be avoided. Especially when, after a fast journey, the car has to slow down, stop and go... or even stop. That's why almost all owners of such vehicles (XK 120...3.5 liters, 140, 150...3.8 liters, MK2...3.8 liters up to XJ4...4.2 liters) usually have an electric fan installed like "kevinpackard" it showed in your blog. And yes, the engine compartment in your Packard has a larger volume and additional ventilation slots that the Jaguar vehicles do not have. But still I am sure that the very high heat that this engine gives off with the shortened fan blades You want to use... cannot be drained out of the engine compartment. In your case, I would try to lead the lower water connection downwards out of the water tank of the radiator and thus make it possible to close the large wing of the 3.8 liter engine (XK 150). Mount it. Or first try with the sucking electric fan inside. It would also be clarified whether the smaller wedge disk can also be mounted on the water pump. You have a number of good suppliers for these Jaguar vehicles in the USA. In 10 years I will I have rebuilt 5 of these engines and vehicles and know the strengths and weaknesses of these model types very well. I drove my Frame OFF restored XK 140 for five years without any problems and with a lot of fun. By the way, I bought it in Hershey in 1995 with only one previous owner and in original condition, but rusted through in all the usual places. But all the original parts were there.
Karl
Attach file:
JagXK140.jpg (335.41 KB)
IMG_20240112_0003.jpg (1,819.99 KB)
this engine has a very heavy cast block as you know. All Jaguar 6 cylinders maintain temperature quite well under normal driving conditions. And as long as there is enough air pressure to dissipate the heat in the engine compartment. Because that is the real problem and not the cooling of the water. When this engine is working under load and in summer temperatures, the block and cast manifold certainly heat up. Also the heated 4 Gal. Engine oil doesn't make this situation any better. If the air cannot be removed from the engine compartment quickly enough in this condition, overheating cannot be avoided. Especially when, after a fast journey, the car has to slow down, stop and go... or even stop. That's why almost all owners of such vehicles (XK 120...3.5 liters, 140, 150...3.8 liters, MK2...3.8 liters up to XJ4...4.2 liters) usually have an electric fan installed like "kevinpackard" it showed in your blog. And yes, the engine compartment in your Packard has a larger volume and additional ventilation slots that the Jaguar vehicles do not have. But still I am sure that the very high heat that this engine gives off with the shortened fan blades You want to use... cannot be drained out of the engine compartment. In your case, I would try to lead the lower water connection downwards out of the water tank of the radiator and thus make it possible to close the large wing of the 3.8 liter engine (XK 150). Mount it. Or first try with the sucking electric fan inside. It would also be clarified whether the smaller wedge disk can also be mounted on the water pump. You have a number of good suppliers for these Jaguar vehicles in the USA. In 10 years I will I have rebuilt 5 of these engines and vehicles and know the strengths and weaknesses of these model types very well. I drove my Frame OFF restored XK 140 for five years without any problems and with a lot of fun. By the way, I bought it in Hershey in 1995 with only one previous owner and in original condition, but rusted through in all the usual places. But all the original parts were there.
Karl
Attach file:
JagXK140.jpg (335.41 KB)
IMG_20240112_0003.jpg (1,819.99 KB)
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