Volvo RWD Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 10/2000

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

740 B230F Compression?

posted by  someone claiming to be Gordon Hull on  Tue Nov 3 15:20 CST 1998 [RELATED]

I am looking at a 1985 740 automatic trans. B230F engine, 311,000 kms, 75% city driving.

The last item on my checklist is engine compression.

When I tested it, the cylinder pressures were: - 90 - 90 - 80 -85 -.

(cylinders 1,2,3,4 respectively).

Plugs are clean with a good burn color (tan) not fouled at all.

This motor is leaking a fair bit of oil at the seals (gaasket cover, front & back cam cover seals, oil pan, etc.)

This compression seems a bit low - my '86 245 with a B230F is at 130 +- on all 4 cylinders.

Is it possible that the timing bely has slipped a cog and the valves are slightly out of time - not allowing maximum compression?

A speedy reply would help - I need to deal today or tomorrow.

Thanks

Gord





THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 740 B230F Compression?
posted by  someone claiming to be Gordon Hull  on Tue Nov 3 15:20 CST 1998 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.