Fat Freddy wrote:Here's my reasoning.
I did use a bit of poetic justice in this but I thought I'd compare engine speed just to give a bit of an idea of what the piston is doing.
And to me both engines in relation to the cam seem to reach peak speed at about the same time with regards to the cam signal. It is a bit vague but I can't find a cranking known good. If the actual timing was out by as much as the crank is indicating it wouldn't happen. That's apart from the fact of the bent valves.
Perhaps I stating the obvious but it gives reasoning to consider this 'ring' thing.
STC wrote:I have to agree that the Magnetic Ring must be the Prime Suspect here. I can assure you that it would be difficult to fit it back to front or misalign it on the Crank. It locates on the woodruff key.
Knowing that this engine has been dismantled I did look at these things very critically. I toyed with the idea of the magnets having spun around on the holder but could not see any evidence of that.
Once Pinned, Timed and Tensioned as per instructions this engine will run and sound ok with brake cleaner fuelling it, so I do believe that "Mechanically" the timing is correct.
KimAndersen wrote:Congratulation STC
You never gave up and had the right trust in your diagnostic gameplan was the correct way to solve this trouble car.
This Volvo S40 had it all in terms of how to diagnose a car with a timing problem.
There should be enough information to make a good case study on this Volvo S40 !!!
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