Well it can only be speculation as I haven't seen this Engine, and yes I do do know what I'm talking about, I was a diesel mechanic for 40+ years, I took a job at a school as the groundman/ gardener for 3 months, as a change, and luckily I was there when the driver reported the smell of fuel, I simply snipped off the end and stretched it a bit as they are C shaped, and told her to go and get new spill pipes fitted now. Luckily it was when she had already dropped off the kids at school.