DeTomaso Mailing List: July 97, Message #13
     



From: "Cristiano Rossi" <Rossi@image.dk>

Subject: Pinging engine

Date: Tue, 1 Jul 1997 21:03:10 +0200



I would like to thank very much all the persons who used some of their time

to give me some advise to find out the reason why my engine pings. I now

have a very good starting point to try to find the right solution. I

understand that the following work can be done to find the cause of the

problem:

- Vacuum regulation of the ignition must be adjusted or vacuum must be left

disconnected

- Ignition must be retarded

- Full distributor mechanical advance must not come in before 2700 rpm, or

the springs must be changed

- Fuel must be with the maximum octane available

- Engine cooling not working properly

- Wrong carburetor

- Increase fuel jet size a couple of numbers

- Use one number colder spark plugs

- Headgaskets can be mounted backwards



I now know what to do during my vacations.



Thank you again.

Sincerely,

Cristiano M. Rossi

Prinsessevej 11

2800 Lyngby, Copenhagen

Denmark, Europe

thpnma 02869



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