David,
The D5 and FE or2.0 are very similar. I believe they will swap though you may have a few issues with wiring. I will try and find additional information that may help. Thanks.
what size motor is the mazda D5 PROPANE like a 2.0 or a 2.2 ?
David,
They should have replaced all the plugs in the head, not just the ones that are leaking. They should have also quoted installing new valves and replacing the head gasket, timing chain and gears along with water pump. This is an old engine, but they hold up pretty good. The FE and F2 were better. Good Luck.