SBF vs. BBF, is it feasible?

[SteveZero 10]

oh, it's definitly the engine. the same thing occurs when it's parked, and i manually rev the engine. please see the previous thread i linked to for more information (unfortunatly, most of that thread deals with timing, but that's all been taken care of now).

 

the engine visually shakes violently at certain rpms.

 

--Steven

[Pakrat 1,043]

oh, it's definitly the engine. the same thing occurs when it's parked, and i manually rev the engine. please see the previous thread i linked to for more information (unfortunatly, most of that thread deals with timing, but that's all been taken care of now).

 

the engine visually shakes violently at certain rpms.

 

--Steven

 

Just out of curiousity did you check your engine mounts?

[SteveZero 10]

no, i haven't checked the mounts. but wouldn't bad mounts be bad all the time? this problem popped up outta nowhere, and the engine shakes at a specific RPM, but then goes away at a hard rev.

 

if it is the mounts, how would i check them?

 

--Steven

[bnickel 10,004]

you may have a burned exhaust valve or a cam lobe that went "flat" or basically got ground away by the lifter, it could even be that the valve need adjusting. i would get a mechanic to check it out.

[SteveZero 10]

Yeah, i've been thinking about that. There's also a constant "ticking" from a few of the rockers...maybe the problem is tied in to that. This is the first time someone recommended taking it to a shop....but that sounds about right. I've been spinning my wheels (no pun there) for about 4 months now, it's infuriating.

 

--Steven