1986 Alfa Romeo Spider Quadrifoglio Verde Bucks in first and steering vibrates
I keep working on my 86 after car was a non-runner, but I still have some issues that need to be addressed:
The car bucks on first unless I go really easy on gas pedal. I would think this could be the transmission rear mount, the engine ones or all 3 of them. There is a hint the engine moves a lot since there is a mark from the radiator cap on the inner surface of the hood that leads me to think the engine is bucking, but I'm not completely sure about that.
It also shimmies and overreacts to road irregularities and I know this is not a balancing issue since I rebalanced all 4 wheels, but I am also assuming this could be due to cheap tires with a criss-cross patern that got squared due to years parked in the garage with tires slightly deflated in the same position. (I already got new tires and plan to mount them soon, but still, this could be shock absorbers or something else, but I checked suspension, particularly ball joints, but as far as I can tell, they are OK but not in excellent shape.
Transmission shifts fine, but there is a slight vibration when one releases clutch pedal and I feel a slight slippage so I am assuming clutch it's going bad, and also rear engine seal seems to be leaking, same as pinion seal on differential, so I will have to remove tranny and because starter driver is also beginning to fail, the best thing to do is to get tranny out and maybe go crazy and replace guibo, middle bearing and support and maybe universal joints.
I just wanted you all's valuable imput first, because I wanted to make sure the bucking issue is related to mounts or maybe something entirely different.
I want to install a pre-74 manifold, to replace catalytic convertor (I am assuming if the lambda sensor is disconnected computer will go to limb mode and slightly enrich mix?) and get a free flow cat and exhaust to get a little more power back or even increase because I am assuming that the car has at least 97,000 miles (odometer does not work and pondering to send it to Palo Alto service and paid 300).
As always, thank you in advance for all your valuable input.
Just came back after installing the new tires: the car does not vibrate anymore, so I will assume shocks are fine. also old tires were really dry rotten, hard and squared indeed, so this solves part of the puzzle, but car still bucks on first.
Last edited by ieshouston; 05-18-2019 at 09:16 AM.