| Author |
Message |
Greg Rodgers (Joechristmas)
Member
Username: Joechristmas
Post Number: 498
Registered: 3-2001
| | Posted on Tuesday, October 15, 2002 - 11:06 am: | |
My thump is from the rear. I know it isn't the tie rod ends as I just replaced them and they are aligned properly. |
David Lewis (Davidlewis)
New member
Username: Davidlewis
Post Number: 10
Registered: 2-2002
| | Posted on Tuesday, October 15, 2002 - 9:31 am: | |
The fans were OK and I just re-attached them. I spent 2 weeks baffled by the noise though. I assumed it was something expensive and was happy to discover (for a change) that it only cost a few minutes of my time to rectify. |
Neville Pugh (Nevpugh68)
Junior Member
Username: Nevpugh68
Post Number: 61
Registered: 7-2001
| | Posted on Tuesday, October 15, 2002 - 4:47 am: | |
Thanks all for your replies !
In no particular order :
Bouncing the car has no effect, and the damper is very strong (i.e. it's difficult to push the car down !)
Fans : I had this problem a year or two ago, and I fixed the problem then. I will recheck it's not come loose though. To be honest, this is more of a "suspension clunk" if you know what I mean (speaking from experience). David, out of interest, what did you do, replace the fans ?
Tie rod end : good thought. Apart from grabbing hold of it and wiggling, how would I test this ? |
David Lewis (Davidlewis)
New member
Username: Davidlewis
Post Number: 7
Registered: 2-2002
| | Posted on Monday, October 14, 2002 - 2:31 pm: | |
My '79 308 did the same thing - a very definite knocking on a less than smooth road. Turned out to be one of the 2 fresh air fans in the front had come adrift. The other one was about to detach as well. |
'75 308 GT4 (Peter)
Intermediate Member
Username: Peter
Post Number: 2084
Registered: 12-2000
| | Posted on Monday, October 14, 2002 - 1:09 pm: | |
More probably the tie-rod end. |
Greg Rodgers (Joechristmas)
Member
Username: Joechristmas
Post Number: 495
Registered: 3-2001
| | Posted on Monday, October 14, 2002 - 10:08 am: | |
I noticed on my 78' 308 that when I make a hard left turn, u-turn, I will hear a knock, or thump, thump, when I am turning and then I don't hear it anymore. My QV doesn't do it but the 78' does. Is this similar? Wheel bearing? |
Neville Pugh (Nevpugh68)
Junior Member
Username: Nevpugh68
Post Number: 60
Registered: 7-2001
| | Posted on Monday, October 14, 2002 - 10:04 am: | |
Um, well it's a definate "knock" (as opposed to body flex or rattle) and it's only just started (has never done it before) so I'd like to try and trace it :-) |
Matt Lemus (Mlemus)
Junior Member
Username: Mlemus
Post Number: 241
Registered: 8-2002
| | Posted on Monday, October 14, 2002 - 9:56 am: | |
Mine has done it for a couple of years. Ferrari said not to worry. It is the bodywork, suspension, wheel wells flexing. |
TomD (Tifosi)
Intermediate Member
Username: Tifosi
Post Number: 1494
Registered: 9-2001
| | Posted on Monday, October 14, 2002 - 6:30 am: | |
another thought - not sure how it is on the 308 but occassionaly the bodywork fender losens on some mondials and it rattles if you go over a bump |
TomD (Tifosi)
Intermediate Member
Username: Tifosi
Post Number: 1493
Registered: 9-2001
| | Posted on Monday, October 14, 2002 - 6:29 am: | |
did you try to carefully push down on that corner and see if you hear it or whether the car comes back up cleanly ans smoothly? |
Neville Pugh (Nevpugh68)
Junior Member
Username: Nevpugh68
Post Number: 59
Registered: 7-2001
| | Posted on Monday, October 14, 2002 - 4:28 am: | |
My 308 (1980 carb) has just started with slight fault .... occasionally there's a bump or knock from the front LH (passenger in UK, drivers in US) suspension, particularly when going over grates, depressions or potholes in the road.
It's not very loud, but I want to stop it.
I've visually inspected that corner, and nothing appears out of kilter. I've tried the old jack the car up and use a crowbar under the wheel trick, but that didn't show any movement or knocking, neither did the 12-6 or 3-9 rocking tests on the wheel.
How do I find this knock ? Any tips anyone ? |