| Author | Message | ||
| Shamile Shams Kassam II (Shamile)
New member Username: Shamile Post Number: 3 Registered: 12-2002 |
Oh yeah, I also cleaned that pair of block connectors behind the coolant tank as well. | ||
| Shamile Shams Kassam II (Shamile)
New member Username: Shamile Post Number: 2 Registered: 12-2002 |
Dear Ferraristi, Thanks so much for the help. Sorry I haven't been around to let you know what has transpired. - I did change the extenders and the plugs were changed about 4500 miles ago. They are bosch but I will be pulling them so I will give you an update on type and condition. ( The Ferrari Dealer in Orlando installed them) -The caps are in good condition ( as far as I can tell) One is made in 85 and the other in 98. One rotor is a green color while the other is black. How do I tell if they are good or not? - I did find a bit of oil seeping into both caps. 5-8 a little more than 1-4 On both caps there was a glistning oil surface inside as well as inside the aluminum castings. On the 5-8 rotor there was a light oil surface on the tip. Can this be enough to cause missing problems? Well, I spent all day cleaning them with a degreaser and using an audiophile contact cleaner/enhancer on only the metal surfaces. - JRV, I took your advice ( who doesn't  ) and cleaned the digiplex ( the two coils right? ) connectors and the ground. They weren't really dirty as I cleaned them before as I love a clean engine. I did clean that ground strap contact surfaces and made sure there was a bare metal to metal contact. ( both ends of the strap)For the modification to the ground strap you mention, where on the chassis would you like it to go. On the digiplex end, should I attach the new ground strap to the bottom bolts of the square metal housing holding the coils? With all the cleaning, the miss is still present when I disengage the clutch and the rpms drop a bit. It doesn't miss at idle or if I bring the revs up in neutral. I'll let you all know the condition of the plugs. | ||
| Mark (Markg)
Member Username: Markg Post Number: 367 Registered: 2-2001 |
Change plugs for sure; but if Techron solves the problem sounds more fuel related.... my 82 GTSi had similar problem on occasion, thermo time switch was bad causing incorrect fuel delivery now and then. | ||
| James Angle (Jimangle)
New member Username: Jimangle Post Number: 20 Registered: 9-2002 |
I have to agree with JRV. Have you at least checked the plugs? They could be fouled. | ||
| Greg Rodgers (Joechristmas)
Member Username: Joechristmas Post Number: 634 Registered: 3-2001 |
Is that what causes the digiplex boxes to malfunction; a bad ground? I have heard about them malfunctioning and causing a timing belt to skip teeth. This was how Ed Gaults car lost a belt if I remember correctly. | ||
| JRV (Jrvall)
Member Username: Jrvall Post Number: 697 Registered: 11-2002 |
Did you install new plugs along with the extensions? That should be step 1 imo. It's embarrasing to spend time and money chasing mystery problems only to find 1 or 2 of the basics have been overlooked. That said, Modifications have to be made to the DigiPlex ground circuits and connections to the units. Loose/Dirty/Corroded connections to the DigiPlexs are Very Common as well as the need of a seperate, additional ground wire set-up. The DigiPlexs should be inspected, the connectors cleaned and Tie-Wrapped back to the units VERY SECURELY, I unbolt the units, inspect and service the connectors, Tie-Wrap them to the DigiPlex, then rebolt them to the mounting plate. Then, using 12 gauge wire, I make a seperate set of ground wires for the unit housings and bolt to a hold down stud on each one, then in a seperate part of the frame (not the original rusty mounting tab)I secure the other ends of the new ground cables. | ||
| Matt Lemus (Mlemus)
Intermediate Member Username: Mlemus Post Number: 1550 Registered: 8-2002 |
Check the Ferrari Owners Site for parts. I was there the other day and they had them for our 2 valve for $60 each American | ||
| michael marchese (Bigdog)
Junior Member Username: Bigdog Post Number: 61 Registered: 8-2001 |
Those rotors @ Sodacoms aren't for a 308 2 valve! | ||
| Paul Wehmer (Pwehmer)
Junior Member Username: Pwehmer Post Number: 66 Registered: 10-2002 |
The guy at Sodacoms.com shows to have rotors available. But direct fire would still be a good thing. | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 435 Registered: 2-2002 |
I've said it before, and I'll say it again... Those extenders are a statistically significant factor in 3x8 ignition problems. It's the very first thing I check when someone says they're car is missing at any RPM. | ||
| Kelly (Tifosi1)
Member Username: Tifosi1 Post Number: 462 Registered: 2-2002 |
Next step would be wires, rotor and caps. but you may have to switch to direct fire because there are no more rotors. Good Luck Kelly | ||
| Shamile Shams Kassam II (Shamile)
New member Username: Shamile Post Number: 1 Registered: 12-2002 |
I have read all the great advice on this site. I too have a problem and hope all you guys can help me out. I have a strange miss at idle on my 80 308 GTSI. I read that someone had a simular problem on his 328. He changed all the extenders and solved the problem. I did the same and found a Pin-burn hole and cracks on 4 others. The car sounds smoother at higher rpms now. I still have the miss at idle... especially when I pull out the clutch and the rpms drop a bit. If I accelerate really hard, I can take the miss up to 4000 rpm. If I accelerate normally ( not slowly ) the miss drops off at 2200 rpm. I noticed that if I put Chevron Techtron in every other tank, the miss is not there. If I don't, It comes back at around the third tank. Very weird...Please help. : ) |