| Author | Message | ||
| ctk (Ctk)
New member Username: Ctk Post Number: 33 Registered: 7-2001 |
Always keep your gas tank topped up with fresh fuel, change the fuel filter regularly, set the CO and HC using proper equipment, then leave it alone. Unless you are familiar with K-Jet don't mess with it. It doesn't need tinkering. Ultra reliable but now old-fashioned. | ||
| Dave L (Davel)
Junior Member Username: Davel Post Number: 79 Registered: 7-2001 |
Brian- the folks who maintain my Lotus and from my own reading, Ive heard unless your car is running bad, to go easy on the fuel additives for fear of causing seal leaking on the injectors. Like the old adage..if it aint broke...dont fix it...Dave | ||
| Brian stewart (Eurocardoc)
Junior Member Username: Eurocardoc Post Number: 179 Registered: 11-2001 |
The Bosch CIS injection system is pretty trouble free, do not try adjusting the fuel mixture without a CO meter, the adjustment is very fine and you cannot get close "by ear". I fix other peoples cock ups constantly on these systems, if it runs, leave it alone please. | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 463 Registered: 12-2001 |
That is true. It just looks like there is a lot there. Your right though. Volvo, BMW, etc. use Bosch FI systems and they rarely need any service on the FI components so, why would this system be any different on a 308. | ||
| Robert Davis (H2oquick)
Junior Member Username: H2oquick Post Number: 73 Registered: 8-2001 |
Just think of how many parts are in the carbs?, then how many carbs on a 308?, how many adjustments?. FI cars..1 wrench..1 adjustment...few minutes top from start to end..I have yet to adjust mine........What I am trying to say is that you should never have to work on the injection versus the carb, which you will work on......yet the carbs are still awesome to look at, my buddy has polished stacks and filters on his........ | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 459 Registered: 12-2001 |
Rob, thanks for the info. I am looking into an injected car. I think it will be better for daily driving too. I am just a little worried about being able to work on the FI myself. I have done my own work on my carb 308 so, I would like to continue to do my own work on a injected 308. It sounds like it isn't any harder to work on than the carbs. | ||
| Robert Davis (H2oquick)
Junior Member Username: H2oquick Post Number: 67 Registered: 8-2001 |
I have a 82 308 with FI, you will enjoy the injected cars better. Cranks up everytime, no fouling plugs, smoother idle, no backfiring. My buddy has a 78 308 carb, he seems to always be tinkering with the fuel system one way or anothers. It spits, sputters, backfires when cold. Nothing against the carb car owners...they are cool looking, but for an anytime driver i will take an injected Ferrari. | ||
| Verell Boaen (Verell)
New member Username: Verell Post Number: 36 Registered: 5-2001 |
re: Techron Concentrate It's Chevron's fuel system cleaner/conditioner, sold in a black bottle with a long thin neck at most auto parts stores. Put it into a nearly empty gas tank, just before filling it up to at least half-full. If your trying to solve a fi problem, it seems to work best if you drive 10-20 miles or so to get the mix throughout the fuel system, then let the car set a couple of days to let the solvents do their stuff. It's also the fi cleaner additive in Chevron gas as well, but much more diluted. Just for jollies I went to www.Chevron.com to see what they say about it. Here are some interesting posts: http://www.chevron.com/prodserv/fuels/techrongas/history.shtml http://www.chevron.com/prodserv/fuels/gas%5Fqanda/tech%5Fcon.shtml http://www.chevron.com/prodserv/nafl/auto/content/faq.shtm BTW, the usual no financial interest disclaimers apply, I'm just a satisfied customer... | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 1744 Registered: 2-2001 |
True. | ||
| '75 308 GT4 (Peter)
Intermediate Member Username: Peter Post Number: 1598 Registered: 12-2000 |
I can understand your logic better. Seeing as you have all that grease on your hands, it'd be a shame to get those manuals dirty with fingerprints!  | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 1743 Registered: 2-2001 |
Yeah it's much more fun when it's like 12am and you're covered with grease, have to wake up early the next day, and you're doing something that would be so easy if you would just check out the books. My dad says I don't read the directions/books enough, I think he may be right. | ||
| '75 308 GT4 (Peter)
Intermediate Member Username: Peter Post Number: 1596 Registered: 12-2000 |
Good advice Bret . | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 1737 Registered: 2-2001 |
I didn't learn anything from books really. You can kind of piece it together what things do from the fuel system diagrams in the WSM. Also, Mercedes used them so I ask some of the older tech guys a little here and there and got a general idea. And my neighbors real good friend works for Volvo and a couple times he checked out the 308 and told me a little bit about the KJet which they used too at one point. Getting a book would be too easy. | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 445 Registered: 12-2001 |
That is good to hear. I thought it would be much harder than the carbs. I found the carbs to be nice once tuned properly. Techron, is this FI cleaner? | ||
| Verell Boaen (Verell)
New member Username: Verell Post Number: 35 Registered: 5-2001 |
The K-Jetronic FI is one he@$ of a lot simpler & more reliable than a carb system. Generally all you have to do is run a container of Techron thru it at the start of the driving season or every 3K miles or so, whichever comes 1st. Also, change your fuel filter at the recommended intervals & make sure you don't let any dirt get into the filtered side line when you do it. Like the battery bunny, it just keeps working. | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 442 Registered: 12-2001 |
Thanks for the info. I have been thinking about looking for an injected 308 but an slightly worried about the FI components. The carbs I am comfortable with but I do like the way the QVs drive as well. | ||
| Verell Boaen (Verell)
New member Username: Verell Post Number: 34 Registered: 5-2001 |
1#$@#$, It would help if I spelled the author's name correctly too, it's Probst, not Proust. Guess I was thinking about a sexy dancer... | ||
| Verell Boaen (Verell)
New member Username: Verell Post Number: 33 Registered: 5-2001 |
Oh, yes, forgot to mention, Probst's book is available from AMAZON.com at a reasonable price. | ||
| Verell Boaen (Verell)
New member Username: Verell Post Number: 32 Registered: 5-2001 |
See my post under the thread: K-Jet to Motronic Anyone? http://server.ferrarichat.com/~ferrari/ferrarichat.com/discus/messages/112/6357.html?1014126439 It talks about Proust's execellent book on BOSCH FI. The K-Jetronic/KL-Jetronic used on 3x8s is elegantly simple. Almost all mechanical. Proust gives both tutorial over views & details with excellent figures & pictures. The Ferriari K-Jet's work just like all other K-Jets he discusses. | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 440 Registered: 12-2001 |
Bret, what did you use to learn the Bosch system on your car? | ||
| BretM (Bretm)
Intermediate Member Username: Bretm Post Number: 1736 Registered: 2-2001 |
Check out ferraribooks.com, I don't know for sure, but they might be able to help. | ||
| Richelson (Richelson)
Member Username: Richelson Post Number: 438 Registered: 12-2001 |
What is a good book to purchase that explains how the Bosch K-Jetronic works on 308s and tells the names of the components? Also, a book that can help in diagnosis too. I have been trying to learn about the 308 FI. Is it very compliated? |