DeTomaso Mailing List: March 98, Message #25
     



From: 	Kirby Schrader <schrader@sugar-land.spc.slb.com>

Subject: Longchamp Cleveland heads

Date: 	Sun, 1 Mar 1998 19:14:03 +0000





OK, I finally got around to pulling the valve covers on the Longchamp. Put

some new gaskets in and was looking for the reason for a strange 'miss'

that causes the car to vibrate a little.



First, the right head, which has the 2's in each corner has a 2819 in the

casting. And I didn't see anything else.



The left head, with no 2's has an 8029 (it could be a 3029... it's hard to

read) and D3AE-62B in the casting.



Pulled out the POCA with Steve Liebenow's head article and I'm now more

confused than ever... The right head must have some other info that I

missed.

Any comments?





Second, the 'miss' vibrates the car slightly and I can hear a 'ting ting

ting' on the right bank exhaust pipe near the header while the engine is

idling. I didn't see any broken valve springs, but probably need to look

closer again. I ran the car with each valve cover off, but didn't see

anything or hear anything obvious. The lifters seemed to be working OK and

all the rockers were moving the same as best I could tell...



New spark plug wires, new plugs, distributor cap is OK... Where's the

vibration coming from? It doesn't feel like an ignition problem... and all

the plugs looked fine when I pulled them.





Kirby







Kirby Schrader                  Compuserve: kschrader@compuserve.com

                                            kschrader@slb.com

'71 Pantera #1661 (engine rebuild in progress)

'90 Thunderbird 35th anniversary special

'78 Longchamp GTS #3001   The wife's...

'76 Moto Guzzi LeMans Mark I   http://mwd.sugar-land.anadrill.slb.com:65080/