[VintageLambo] Re: My Jarama quit running, any ideas?

Hello to All, Thank you all for some excellent suggestions. Here is a little more detail. I do have all of the receipts for the engine work. The engine has about 5000 miles on it since the rebuild. I have photos and records detailing the build. That was one expensive bill! I have not checked spark output yet, nor the plugs. I will do this on the week end. The carbs were redone at the time of the rebuild. Chain tension was checked 1000 miles ago(according to the previous owner) The car was running and idling great when I picked it up. It didn"t have any problem until I was stuck in traffic for a few miles. After that it began to run rough, it had little abilty to climb a grade and gradually got worse until it finally stopped completely on a grade. This is after 200 plus miles. It never got hot, lost pressure or backfired. Could a weak or bad coil cause this?Could the carbs gradually go out of adjustment ? I am willing to try to check float level-how do I do this? also what plugs do you guys recommend? Can I just pull a plug wire and crank to check for spark? What is the swimmer/needle that was referred to? How do I check this?Sorry for all the questions, but I don"t want to make an expensive mistake. I am really excited to own an early Lamborghini again and to have found this group of enthusiasts. I used to own a 400 GT in 1987. It was a fantastic car that eventually ended up in Germany. I coudn"t believe how much attention my Jarama received driving down the west coast. Thanks again, Steve --- In VintageLambo@yahoogroups.com, "lamboguy " wrote: > Hi Steve, and welcome!You"re at the right place, our team of > experts will get you back on the road before you know it.;^D > > Just a general comment (it"s hard to add anything to "fuel" > and "ignition").I"ve found with my 400gt that what you experienced > is typical of Lambo cylinders shutting down for one reason or > another.With 12 to work with, it"s usually a gradual loss of power, > just as you described it, rather than the motor suddenly shutting > down.ie: I"m guessing you didn"t damage anything mechanical, but > rather that the cylinders stopped working one by one.My 400 runs > great with one coil wire pulled...It doesn"t have any power, but it > runs great. > > It sounds to me like you are ready for a complete tuneup, including > the rebuilding of the webers and adjusting of the valves and chains. > As the saying goes, a chain is only as strong as its weakest link, > and these cars need to be tuned up properly from time to time, and > usually are not because of the cost or time involved. > > Anyway, I"m curious to know more about your new Jarama.What did the > previous owner do to the car?Do you have receipts?Any tuneups in > its past?Any engine work? > > Also, do you do your own work or do you rely on a mechanic? Either > way, Jack has written an excellent engine manual which you can > download from the Files area to the left.It"s important to > understand the superb engine that we all share in common. > > I think you"ll be ok with this one.Just hang in there and go > through all the steps.Sound like pretty typical Lambo stuff to me. > > All the best, > > Fred > 67 400GT 2+2