Yeah I hear this online and it’s not quite a true causation in my opinion. What I think generally happens is folks realize their cp4 is going bad and they’ve likely spun their crank. They take it to a mechanic who replaced the cp4 and perhaps the fuel system with a DCR and then the customer goes to drive it and realizes the crank gear is spun and then they blame it on the new pump. Or someone runs a really hot tune which could put more bearing pressure. I’m not saying it’s not possible butI think the likelihood of a DCR spinning the crank is less than the likelihood of a CP4 failing. If you want no risk then run a belt driven CP3.I just read quite a long thread about the increased liklihood of spinning the gear while running a DCR. Apparently that pump puts more strain on the gear as compared to a CP3 or 4.
