1963 VW over heating?

Question

Hi I have a 1963 VW that i just got a few months ago I remvoed the engine got new parts .
It runs greats but only for about 30 -45 mins before the oil over heat light comes on it only comes on after the 30-45 mins of driveing and the engine is super hot

So my Question is what can i do or change to fix this problem?

I have a 1963 VW with a 1600cc engine

Answer 1

first off.. there is NO oil overheat light. There is an oil pressure light. If that is comming on it means that your oil pressure is low. THAT will make your engine heat up pretty fast since oil and air are the only coolants you have. I am going to make a basic assumption that you have checked your oil levels and that you are not losing oil whil the engine is running. If you are losing oil then THAT is your problem. I am also assuming that the oil pressure switch is not acting up (that, by the way is easy and cheap to exchange - they DO go out and create exactly the problem you are describing)

If you can not find a problem with the air flow, check your oil pump.

In either case, since you are pretty sure the engine is 'super hot', you need to get this fixed before you drive it much more or you will have a toasted case and engine which will make a great paperweight.

.

Answer 2

You didnt give detailed info on what changes you have made to the engine, if there is no major changes done, then i will suggest the following:
Make sure the cowling which directs the fan air to the hotspots is in place.How about fan efficiency/blades etc? check that the drive belt has enough tension/adjustment.
If possible recheck the valve timing one more time.Goodluck.

Answer 3

Make sure your 2 updraft hoses aren't pinched, all your sheet metal is in place around the perimeter, your fan belt is adequately tight. Make sure that the choke assy in the back of the shroud (if it is still in)isn't partially closed. If you run the external cooler, remember that your oil gets hotter when you are stopped. Other possibilities are numerous.

Answer 4

I HATE TO ANSWER WITH QUESTIONS, BUT THESE LEAD TO POSSIBLE CAUSEOF OVERHEATING.
WAS THE ENGINE BORED OVERSIZE? IF TOO MUCH, IT COULD BE TOO THIN-WALLED AND OVERHEATING CAN BE A PROBLEM, THEN. I ASSUME ALL THE FINS ARE CLEAN ON THE CYLINDERS.
WAS THE CAR MODIFIED SO AS TO WHERE THE AIR FLOW AROUND THE ENGINE WOULD BE REDUCED? ALSO, IS THE TEMPERATURE SENDING UNIT OPERATING PROPERLY, THAT IS, IS IT HOT, BUT NOT TRULY OVERHEATING? BEST OF LUCK!!!