> Is a "soft" lifter a good indication that it is not pumping up properly?
Not really. It just means it has beld the oil out. They can do that and
still build pressure once the oil pump starts pumping.
> I am thinking I have some bad lifters, and need to replace all of them.
With 100K on the engine, you'll want to replace the cam too. Putting new
lifters on a worn flat tappet cam can be done but is risky with low ZDDP motor oils.
Have you been into your engine? Does it still have the aluminum timing gear,
failure prone 2 piece valves and original valve stem seals. If so, you'll
want to replace all of that.
Dan Jones (in Florissant, Missouri not too far from you).
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.