Home › Forum › Ask A Member › QD19 Overheat Question – Update › Re: Question For The OMC Experts
I believe the service bulletin covering the hot leg/paint charring and drilling a water passage to cool it was for the 1955 model year Big Twin/RD motors not the Sportwin/QD. I’m not home so I can’t post that bulletin but I did the update to my ’55 Big Twin so that’s why I remember it. I’ve never seen a "hot shifer" problem on the post ’57 Sportwin/RD models and owned at least a dozen of them, nor do I recall a bulletin on this issue with that series motor. Unfortunately, I think the problem must be elsewhere. Actually a common problem I’ve seen on the Sportwin/QD is water leaking (sometimes profusely!) at the shifter due to wear or a bad O-ring.