Volvo RWD 900 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 6/2006 900 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

940 base regina setup 900 1993

posted by  Blindboy on  Mon Aug 6 15:22 CST 2018
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Oct 21 17:56 CST 2014
[RELATED]

Ive had a problem w the no 4 cyl spark plug being crudded up..looks like wet grease.I once tried injecting Marvel mystery oil into the spark plug hole & let it set over nightThen I ran the engine for a while & changed the oil,..seemed to loosened the rings & ran it the next day & after a week I checked the plug & it was clean & now its 4000 ???miles later?,& the black crud is back,,Maybe its the valve seals? Guides that are to blame???







  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    940 base regina setup 900 1993

    posted by  porkface on  Mon Aug 6 16:34 CST 2018
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 09:12 CST 2014
    [RELATED]

    you don't say how many miles.

    i would ASSUME w/o a compression and leakdown test, it's the valve stem seals, not the guides. a compression and leakdown test will tell you if its rings or not. valve guides are waaaay down my list of problems on these motors. now if it was a mercedes.................... good luck, chuck.







<< < > >>



©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.