I am looking at different possible solutions for an oil cooler as I do wring out that poor little engine for long stretches. There are several commercially manufactured GY6 cooler units. The issue is finding one that matches the kymco.
Thanks, I never knew about the oil cooler units and got quite exited after I saw the adaptor which get installed at the big drain plug hole. But when I had a close look at how the system actually works I started having serious doubts whether installing such a system is a good idea. In fact - I am more than convinced that systems like that can easily cause serious engine damage.
The reason being - in a system like this the adaptor with banjo fittings, oil cooler radiator, and external hoses get installed BEFORE the oil pump. In other words - the oil pump needs to suck oil via the complete cooling systym before it can feed oil to other components at the outlet side of the pump.
It is common knowledge that in cars, ldv’s trucks, tractors, etc. oil filters always get installed AFTER the outlet side of an oil pump. Having watched some videos, I noticed that some people even install external in-line oil filters on these scooter cooling modifications. To my mind this is not a good idea at all - an oil filter should NEVER be installed before an oil pump, it can easily restrict oil flow at the suction side of the pump. Specially when the oil is cold, or during high engine RPM’s.
In short - I think the additional resistance caused by the adaptor with small banjo fittings, the hoses, radiator, and possible oil filter can easily cause major engine problems.
I noticed that at least two sellers recommend the installation of high flow oil pumps during modifications like this, and I think I know exactly why - a standard oil pump could easily fail to suck enough oil through all the restrictions !