Jim Galbally

this is doin my head in now

its not the exhaust and its not the gearbox mount

BTTT for any more ideas

maybe prop related? maybe diff related?

does anyone on here recon they can diagnose and sort it if they see the car? i dont wanna book it into a different garage only for them to be stumped aswell

gearboxman

Bring it up for a test drive
We don't charge for this service, and I have been making diagnosises like this all my life!

Ginge !

bernie can ya sort my crunchy 4th gear for me FOC please, oh and it also pops back out of 2nd when ya aproach roundabouts ( so i try t avoid driving in milton keynes if i can )


on a serious note what is the problem and whats it gonna cost me to get fixed

gearboxman

Give me a ring

Ginge !

i talk soooooo much, me phone bill will be more

Jim Galbally

bernie, when are you free? lol

im working all week and i'm at MSD next sat tho... lol

Jim Galbally

ok this has been going on a LOOOONG time now

i'm pretty sure its coming from the tranny tunnel area

had a feel under there today, onlything i can notice that is out of place is the headshielding/soundproofing... the driverside is all ripped off, only got some on the passengerside, but its dangiling loose all over the gearbox/prop. recon it could be related?

its also worth noting that a week after the problem started, some of this headshielding fell onto the exhaust and started burning. it seems like a bit of a coincidence that this wouldhave happened just after this problem arose

please help with more ideas

ps we've eliminated:

suspension
TCAs
Steering Arms
Rear Beam etc.
Wheel Bearings (i think)
Front Bushes
Exhaust
Diff
Tracking
Tyres Rubbing

Ginge !

jim its deffo on the passenger side mate !!!!, when henchos on here finishes his pit then im sure he will find the problem for ya as he needs nitrous help

hes fooking good too

gearboxman

Still my favourite

Jim Galbally

bernie, i cant find any evidence of anything rubbing

Jim Galbally

ok, another opionion given lastnite:

coming from FRONT LEFT and deffo something that moves touching something (ie a wheel or other spinny thing)

no evidence of the tyre catching the wheelarch tho

SPADGE

Jim have you checked the clearance between the tyre/wheel and the coil over? Or the tyre catching on the front bumper??

RichardPON

Yeah, I checked that last night.

Can't check the rears as it's too low to put your hand between the arch and tyre, BUT, I think it's coming front left.

Would like to see it in daylight though Jim

Jim Galbally

also i'd like to add... this also happened on the old suspension, which was std non-coilover stuff

rsnissan

iTrader: (9)

how have you eliminated the wheel bearings? as i would have put my money on them from the symptoms you have described


...................unless i am being think and missed something glaringly obvoius in this thread

jon@work

iTrader: (5)

I know from experience that it's very difficult to spot on the wheelarch liner where a tyre has been rubbing. Even after taking both front liners out, it was still hard to make out where the contact was - but it was the solution to my problem. My suggestion - take out your front left liner and see if the noise disappears (only a few screws with the wheel off, nothing more).

Neil S

iTrader: (1)

I'll bet its the brake disc rubbing on the caliper carrier. Do you get more brake pedal travel after cornering?

Seems like you've eliminated pretty much everything else!

Neil.

Eagle

iTrader: (2)

inner liners i think .....

Jim Galbally

eagle, deffo not inner liners

neil, not abad thought...

i've had new pads fitted since with zero difference, but would you expect this to be irrelevant? also if it is this any ideas how i would diagnose or fix?

oh, and i assume you mean fronts yeah?

Neil S

iTrader: (1)

Jim - What front hubs are you using? (out of interest)

Right, imagine there is play in the wheelbearing. The disc would be allowed to move in and out. This would push the piston back into the brake caliper when you corner hard. The next time you apply the brake, the pedal should travel more.

I've had this twice:

Once on my old S2 (The hub drive flange had shattered - all that was holding it together was the bearing races), there was no detecatble play at the roadwheel - I had to strip it down to find the problem.

The other time was on my cossie - The hub nut came loose, and it had the same symptoms as I describe above, only this time spotting it was esy cos the wheel wobbled like a bastard

Both could have been nasty lol

Neil.

Ginge !

reminds me.,,,,,,,,,,,,,must change that wheel bearing of mine


as now when i close the window i cant still hear it

Jim Galbally

ok i just did the following to test:

driving @ about 5mph turning left...

little grinding (normal)

driving @ about 5mph turning left whilst left foot braking

LOTS OF GRINDING

has to be brakes related then! as its the only spinny thing that hasn't been examined!!!!


ps i use standard sierra 2wd hubs (non-cossie) and 4x4 cosworth calipers/pads (i assume 4x4 cos discs, but ive never checked)

i will examine the front brakes on saturday whilst we're playing with the rear suspension

i SOOOOOOOO HOPE THIS IS IT

Oranoco

Sounds promising Jimbo. Hope you suss it as I know it's been driving you mad for a while now.

benporter

iTrader: (1)

sounds just like the same problem i have but goes away when im braking

Jim Galbally

booked into SCC tomorrow for a look

Jim Galbally

well...

ok, 2wd discs and 4x4 calipers... now we all know what problems that causes





so after a bit of this...



now has clearance


STILL FOOKIN GRINDS THO

and now i've got a knocking under braking coming from the front right wheel

ive fuckin had it now SOMEONE SELL ME A 2wd COSSIE ARB, HUBS, TCAs, BRAKES so i can replace the whole fookin front end setup

ps whilst invesitigating earlier i also touched the dics...

i now have a few layers of skin missing on my finger

oh and also my heater matrix SHIT IT on the way home, so big puddle in footwell now

roll on central day eh?

SteveB

iTrader: (3)

When was this pic taken then........ i'd have smiled if i'd have known....

Neil S

iTrader: (1)

Jim,

Pull the two hoses off the matrix (Drivers side of bulkhead, in the engine bay) and join em with a bit of metal pipe. At least then you can drive the fucker till you get a new matrix in!

Theyre only about 15 quid from the factors but will take you a few days to get the dash off lol

Neil.

Jim Galbally

neil, thats the plan... but one problem...


...there's a huge V6 engine in the way

Mike Rainbird

iTrader: (3)

Jim,
I have a pair of 2wd TCAs you can have for Ł10? They're cluttering up my garage . If you want I'll bring them to Central Day?

Jim Galbally

mike, ive arranged to get the brakes wednesday, and the rest friday, and then fitted on saturday :P

Jim Galbally

today the exhaust has been off and on again.

now it happens when sitting still and revving engine.

it all adds up the exhaust vibrating back thru the mounts!


soooo fuckin simple

gonna get the exhaust re-tensioned tomorrow n see if that sorts it

Jim Galbally

ok, took car to exhaust place thismorning, one of the clamps touching gearbox area (think it was touching cradle) looks like it's been "modded" (the clamp) on purpose, so possibly a known problem b4 i got it?

anyway, new clamp and the bloke tried his best to get it out of the way.

now it's a lot better, but not cured.

also the followiung test was carried out...

turning sweeping left... constant grinding

dip clutch

as revs drop its gets quieter and quiter then completely dissapears

got to be the exhaust vibrating them hasn't it!

gonna see about getting a new front section of the exhaust made up that isn't so completely sh*t like mine is!

Jim Galbally

car's currently at the powerflow dealer having a new front section of exhaust made up (everything from manifolds to middlebox)

Mike Rainbird

iTrader: (3)

Should sound sweet .

JohnnyB

right, does the griding get worse with the brakes applied?

JohnnyB

I had a grinding sound its was the wheel bearing. there seemed to be no movment, but sounded like there was somthink not right.

took the hub of and the bearing were fooked

Jim Galbally

no, but like i said, i'm not 99% sure its the exhaust now ive had a proper look at it!

CossieRich

iTrader: (1)

Have you got the gearbox problem sorted yet jim more importantly

Jim Galbally

rich, yeah lennie and his dad sorted it for me the gear linkage rod thing had SNAPPED

its been welded back together