| Author | Message | ||
| Steve Magnusson (91tr)
Member Username: 91tr Post Number: 864 Registered: 1-2001 |
Mike -- the air from the air pump is delivered into small tubular manifolds that, in turn, feed "nozzles" mounted in each of the exhaust ports of the cylinder head:  (You've gone an alternate route air pump-wise, but as Terry said,) if it's an air-injected version, '77 and before use the 2 small air pumps (one for each bank with separate diverter valves); whereas, '78 to '82 use the single large air pump (who's flow is "T"-ed by the single diverter valve to the two banks). | ||
| Terry Springer (Tspringer)
Junior Member Username: Tspringer Post Number: 145 Registered: 4-2002 |
I dont have the pics for an 80-82. If you search the archives here, you may be able to find some diagrams posted on the emissions systems. Are you primarily concerned with just the visual inspection? If so, I seriously doubt the inspection guy will know if its properly plumbed anyway. You could probably get away with just putting on the top air pump and forget about the bottow one that is largely hidden from view. The front plugs are easily reached by putting your arm into the bay in front of the engine cover when open. I dont know if your turbo setup causes a problem wiht this, but I can reach mine very easily without reaching over the top of the engine. | ||
| Mike Ramay (Mramay)
New member Username: Mramay Post Number: 2 Registered: 7-2002 |
Thanks for the info - I agree that there should be an easier way to do the plugs but I have lots of blankets so I can lay on top of the engine to get to the front plugs. :-( Re the air pump - this is a '79 but is much modified with the twin turbo setup. I can add some small pre-catalytic converters to help with the exhaust pipes but the CARB will look for an air pump. I've procurred a Mercedes electric air pump and have figured out how to power it (temporarily as required) but could use some assistance on where to plumb the air. If you could scan in the 80-82 pic and email it, that would be great. | ||
| Terry Springer (Tspringer)
Junior Member Username: Tspringer Post Number: 143 Registered: 4-2002 |
Plug change is easy. You need a deep well, swivel jointed plug socket. I got mine at Ace Hardware for $2, it has a rubber stopper inside to grip the plug and works like a charm. You also need a 2" extension and a palm ratchet. Getting the front plugs out is all about the right tools. With this setup, no further explanation is needed, its pretty simple. As to the aftermarket intake pipe blocking access, you will probably need to remove this first. The bulkhead does not remove, there is no access panel. I know, I know.... what moron Ferrari engineer decided not to put in an access panel Grrrrrrrrrrrrrrrrrrrrr The owners manual has a diagram of the emissions system. The early carb cars have 2 air pumps. Not sure on the later ones, but I think they have a cat and not air pumps. My car is a '77 and the emissions are removed, but it originally had 2 air pumps. If your car is turbocharged, I dont know if the air pumps are going to work properly or not. I would imagine your ignition is all updated as well. You may be better off installing an aftermarket free-flow cat. | ||
| phil hooper (Wolftalk)
New member Username: Wolftalk Post Number: 25 Registered: 5-2002 |
hi mike, the car originally came with a interesting plug socket that works nicely. it has a u-joint in the middle of it so it's easy to drop into the hole. poke around in your tool kit or jack bag if you have them. otherwise, search the site for "plug socket"...apparently the next best option is a craftsman 13/16" thin-walled deep well socket. wrt to the air pump, depends what year. early 308's had two pumps (not sure what year this changed). the '80-'82 308's had a single pump driven off a camshaft pulley on the rear bank. The pump would be mounted next to the radiator expansion tank, and the air supply hose connects the air diverter valve, which is hanging above the bell housing. if you have an 80-82, there's a pic in the owners manual which I can scan and send if you need it. | ||
| Mike Ramay (Mramay)
New member Username: Mramay Post Number: 1 Registered: 7-2002 |
I'm sure this has been asked before but it's new to me. How do you change the front spark plugs on a 308? Not only is the head right up against the bulkhead, but this is a twin turbo engine and one intake pipe passes right over a plug. :-( Does the bulkhead between engine/passenger compartments come out somehow? Also - anybody have a diagram or photo of where the air pump goes into the intake system? Gotta add one back in to get past a CARB test. |