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Post a reply to the thread: prop phasing and vibration
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post no 54
what did you do?
Please read 4 posts up
Is the problem constant above 48mph, or is it worse when accelerating, or when decelerating?
I am no expert on prop shafts, however, many years ago a friend and I both had Reliant Scimitar SE6's. His car had a one piece prop but mine had a two piece prop, he had vibrations but I did not. His brother worked in Jaguar experimental department and told us that they had discovered that a prop length of 42 ins and over had a tendency to whip at higher speeds. The one piece Scimitar prop was 42 ins long and the problem disappeared when he replaced it with a two piece prop. However, I suspect that the diameter and the wall thickness of the prop would have an effect. I hope this helps for later prop problem diagosis. Chris
Excellent, and cheap too !
I'm pleased to announce but the issue seems to be resolved . i could not stay at speed for long due to traffic but first impressions seem good
ill take it to work tomorrow and see how it behaves
thank you to all for your help
I went through the same issues last year split prop though. Had the new prop balance checked by a different company, had the axle rebuilt and changed the gearbox but still there, drove me mad. 1984 Dodge pick up chassis with Rover engine and box.
I collected some wood and rubbish from my sons house which dropped the rear end down a couple of inches and it improved dramatically. Although it was almost the same setup as the original, the rear half of the prop was at a too steep an angle. I lowered the center bearing and all ok.
I know this is not exactly the same but just adding some weight may be worth a try to rule it out.
next door have got their grand child over and he is asleep in the conservatory
not really fair me making a row tonight
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