does that jd & loader keep over heating ? i knew a chap take all the pannels off the engine once when he was power-harrowing in the summer coz it kept over heating . turned out the radiator was choked solid with dirt , mind you i've had to keep the side pannels proped open on an MF 698Twhen power-harrowing to keep the engine cool & a deutz 78.07C when mowing as all the thistle heads kept blocking the finns on the cylinder heads \
OR
it could be that somethings fallen off the loader & mashed the tinwork \ \