Ti-pex method?
It's a cheating method of doing timing belts if you don't have the timing tools. You just mark the pulleys and the engine with ti-pex for timing marks, change the belt making sure your marks all line up. Job done! Quick and easy?
It works fine on old petrol engines, but pump timed diesels and modern petrols it's very hit and miss, you can have two belts that seem identical but are very slightly different lengths. The result is that your pump isn't timed to your crank precisely. So your pump timing is out! I got sent on a cam belt training course years ago they made us time up an engine with the proper tools then change the belt using the ti-pex method, and try to fit the timing tools, they wouldn't fit. It was a quad cam v6, by the time you got to the furthest pulley from the crank it was over half a tooth out! If you have that on an injection pump its timing is way out and it can go either way!
Long story short you must use the timing tools or you could well have a problem, if you're lucky the difference will be minimal and you won't really notice, but it can make them smoke like a bitch from cold start and loose performance/economy. It's a definite possibility for your fault, like wise if the belt's on its last legs the timing can change slightly.
For what it takes to check and adjust its worthwhile. Only problem is getting the tools. I had my crank pin made and the pump pin is a standard drill bit size.
