Post #363
Update time:
I replaced the rose joints on my droplinks as some had got a little bit of play in them, and i hadn't used any boots to protect them from dirt etc.
Whilst they were off i milled some spanner flats at each end as it makes it much easier to tighten the locknut with them there. I was going to turn the centres down as they are too heavy but i didnt get chance before i needed them back on my car for the latest trackday. That will have to wait for another day.
IMG_1977 by
Steve Count, on Flickr
IMG_1976 by
Steve Count, on Flickr
When i refitted them i used some sealing boots lined with grease to hopefully protect them a bit from the elements this time.
I also fitted new anti roll bar bushes.
There's been a knock for some time now, it's really being getting on my nerves so whilst the front end was on axle stands i got my pry bar and tried to find play in all the joints, i couldn't find any but checked the torque on the P bushes and subframe, and finally got round to fitting some fine pitch bolts to clamp round the balljoints and did them to the correct torque.
I took it for a test drive with the rainsport 2's on and the knock appeared to have gone.
I took it to Oulton park yesterday, the morning started off wet/damp with very limited grip (spinning up in 3rd with ease in places), still no knocking. As the morning went on the track dried and grip improved (druids stayed a bit dicey for quite a long time).
After dinner i decided to head down to the local petrol station to fill up again, en route the brakes sounded nice and grindy. I knew what the issue was but there wasn't a lot i could do about it until i got back to the track. I knew the pads were running low before the day (2-3mm material left), but couldn't justify buying any more pads as i have some 4 pots to fit over winter. Anywho here is the result.
IMG_1985 by
Steve Count, on Flickr
IMG_1986 by
Steve Count, on Flickr
I had some spare standard pads with me so was about to fit them when jeffers brought me his spare DS2500's. Top man!
I fitted them, took it for a few test laps round the carpark, they felt ok so i ventured back out on track. (Session 3 of the videos, hence why i take it a bit steady to start with).
They worked fine the rest of the afternoon but i left the footage from the last trackday on the cameras memory card like an idiot so i ran out of space and didn't get any footage of when the track was dry and i was on form.
Back to the knocking, it can be heard in the videos, it's hard to trace where it's coming from though because the roll cage links the rear beam mounting points and the front turrets, so noise just surrounds you. It can be felt through the steering wheel sometimes, so i'm beginning to think the most likely culprit could be top mount bearings, ball joints or the wishbone bushes. It does it when accelerating, braking and throwing weight from one side to the other.
I'll be replacing the beam over winter, adjustable topmounts are also on the cards, if they don't stop it i'll have to look further into it.
Here are the videos.
Near miss around 11:30 in session 1.
Session 1
Session 2
Session 3
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Goldie the track car.
prism7guy
Posted 23rd Aug 2012 at 17:34
How does the rear compare to the standard one now that you have the 21mm TBs and the thicker ARB? Is that a hybrid one?
