18, North Orbital Commercial Park, Napsbury Lane, St Albans AL1 1XB Tel: 01727 866075
On the subject of oil, Jaz rely on Mobil – like Porsche themselves – but for air cooled engines opt for semi-synthetic Super 10W40, a choice I agree with: the tolerances of older engineering, particularly the oil pump, demand a ‘fuller’ oil, and not the fully synthetic 0W-something recommended for modern power units.
The Dansk silencer was a perfect fit, once Warren had got a grinder to the rusty old bolts on the mounting flange with the intermediate box. Whilst the box was being fitted and we were downing our own lubricant (tea, milk but no sugar please) Euro Car Parts were doing what they do best and delivering a GKN box containing all the bits needed for the drive shaft boot replacement that had only been ordered an hour previously. The back plate was out of stock and so would come another day.
Changing the boot is not as easy as it sounds. The drive shaft needs to be taken from the car (unbolt the lower damper mount first) and the inner c.v. joint, which bolts to the flange on the differential, removed so that the outer boot can be slid off along the shaft and the new one fitted. It’s not possible to separate the outside c.v. joint which carries the splined axle because this is friction welded to the shaft on Carrera 3.2 models – although it does unbolt on earlier cars.
Sounds simple, eh? Only problem is that a c.v. joint that’s been tight on a drive shaft for 30 years tends to be a bit of nuisance to remove. With the shaft in the vice on the work bench a fairly large hammer had to be brought into action. But all went smoothly as the pics show.
The brake back plate arrived a few days later and was duly fitted on a return trip to Jaz. The disc, hub and brake caliper have to be removed to bolt the new plate to the casting that carries the stub axle. The brake caliper can be simply tied back out of the way, there being no need to disconnect the hose which would entail bleeding the brakes on refitting. Whilst the wheel and disc were out of the way I took the opportunity to knock out the mud that collects on the oil cooler pipes that run inside the wheel arch – leave it there and when it’s wet it will corrode the pipes.
All done then, thanks to Warren and Steve. Not a DIY job I’m afraid, but the workshop at Jaz is so clean and tidy (eat lunch off the floor etc) I felt I needed to do my bit so swept up the crud that fell from the wheel arch before I left. PW