The Lotus engine sat idle in storage for about 32 years. The compression readings were low and after a "leak down" test was performed, one could conclude the rings were stuck after so many years of inactivity. I decided to have it dropped off at the machine shop in Olean, Ny for a disassembly, and general checkover. The engine didn't need a complete rebuild by any means, but anything which hasn't been run to a long time deserves a general checkover while things are opened up.
The Engine was dropped off at Glen and Dicks Automotive machine shop and the exploritory surgery was performed by a machinist over a period of quite a few months.
Once the engine was broken down the piston bores honed and pistons re-ringed, I decided to replace the main bearings and all the gaskets at the same time. I also replaced 2 suspect valves which looked just a little worn.
The cost was extremely reasonable and the labor quality was excellent.
A breakdown of total costs follows:
1. Assemble and diassemble lotus 907 engine.............. $1320.00
2. Resurface flywheel and R+R pins............................... $60.00
3. resurface aluminum head.............................................$ 50.00
4. valve job (16 valve).......................................................$150.00
5. 2 replacement lotus valves............................................$ 18.00
6. gasket set..........................................................................$150.00
7. 1 set main bearings...........................................................$125.00
8. hone 4cyl block and align.................................................$90.00
9. sealant.................................................................................$38.00
10. Replace tensioner bearings............................................$24.90
11. Plugs ( soft... brass and stainless steel)........................$11.22
12. Degrease and clean engine.............................................$150.00
13. Check and polish crankshaft...........................................$50.00
14. R+R pistons on rods, glass bead, and hone pin bores..$60.00
Total Price................................................................................$2297.12
The attached picture shows the Lotus 907 awaitng the manifold, the carburators, and the other accessories before install.
Next.... new tires, engine install and a test drive...........
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