420r diff bang and clatter fix (possibly)
Discussion
Hi all, just thought I'd share this from blatchat. My 420r has always had the banging and clattering on low speed turns and I was happy to see the thread about a 3mm spacer Caterham are now supplying to virtually stop this...
It slips in at the back of the gearbox once the two big nuts have been taken out:
I'll report back when it's fitted, fingers crossed!
It slips in at the back of the gearbox once the two big nuts have been taken out:
I'll report back when it's fitted, fingers crossed!
nigelpugh7 said:
So it’s a spacer between gearbox and gearbox mount?
I’m assuming what that does is raise the tail of the gearbox in the tunnel?
I can’t see how that would get rid of diff chatter at all?
Unless the intent is to act as some type of insulator or harmonic damper?
What is it made out of?
Yes.I’m assuming what that does is raise the tail of the gearbox in the tunnel?
I can’t see how that would get rid of diff chatter at all?
Unless the intent is to act as some type of insulator or harmonic damper?
What is it made out of?
Yes.
Me neither.
Possible but doubt it.
Aluminum.
If the rain stays off today I'll take it out for a spin and report back, if not, tomorrow.
So, at first I thought there was a difference but I think that was physiological. The noise is still there. It doesn't affect the performance in any way, it's just a bit embarrassing.
Oakmere Lotus (where I bought the car) said the usual, "they all do that sir" but did admit that it was on the noisy side. CC denied there was a problem.
I must say though that after 12,000mls all is fine except for the banging and clocking. I will eventually end up at SPC for one of their diffs.
Oakmere Lotus (where I bought the car) said the usual, "they all do that sir" but did admit that it was on the noisy side. CC denied there was a problem.
I must say though that after 12,000mls all is fine except for the banging and clocking. I will eventually end up at SPC for one of their diffs.
HeliChris,
I'm guessing my plates are sintered as when I checked the preload it was 39lb with 12,000mls on it! All bolts are checked regularly and are fine, nothing is touching or catching the chassis either.
Like I said, it's only the noise that's embarrassing, everything else is a hoot!
I'm guessing my plates are sintered as when I checked the preload it was 39lb with 12,000mls on it! All bolts are checked regularly and are fine, nothing is touching or catching the chassis either.
Like I said, it's only the noise that's embarrassing, everything else is a hoot!
Yes, RRT oil will be the next step. And thanks for the tip HeliChris.
I didn't spec my car, it already had it when I bought it. The only have the experience I have of any other is of a live axal I had in my old 1992 Super Sport. I'm too long in the tooth to do 'bragging rights' I'll leave that to the younger folk!
I didn't spec my car, it already had it when I bought it. The only have the experience I have of any other is of a live axal I had in my old 1992 Super Sport. I'm too long in the tooth to do 'bragging rights' I'll leave that to the younger folk!
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