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C30 2litre petrol. UK. vibration 2.5k rpm engine mounts, fViews : 459 Replies : 9Users Viewing This Thread : |
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Sep 16th, 2019, 11:41 | #1 |
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C30 2litre petrol. UK. vibration 2.5k rpm engine mounts, f
2l petrol c30. RHD. I get a vibration I can feel through car, pedals, floor etc. at 2.5k rpm.
Gear change is fine, manipulation of clutch pedal doesn't 'seem' to affect the note/tone of vibration. I've read on ford focus forums of engine mounts causing this, or more rarely DMF flywheel being the culpret. Clutch flywheel is megabucks so wanted to ask advice first. Anything I can do to rule things out? My gut is to change engine mounts first as cheaper than clutch/flywheel option. thoughts? cheers |
Sep 16th, 2019, 14:47 | #2 |
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Vibration can be from many different thing like the tires and if they are weighted correctly etc
Doesnt harm changing your engine mounts at all but if its happening at a certain speed maybe look at your wheel alignment or wheel weights?
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Sep 16th, 2019, 14:59 | #3 |
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Hi, it's good advice. already had new tyres, balanced and tracking done... also, it does it when stationary in neutral.. so its engine speed related not road speed. my RHS upper mount split and leaked when i touched it so rubber is defo perished
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Sep 16th, 2019, 17:44 | #4 |
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miles?
what sort of milage has it done ?, as you say it shares a lot of mechanicals from the ford focus..
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Sep 16th, 2019, 18:39 | #5 |
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just shy of 80k miles. I'm going to get RHS and rear engine mounts changed. the rear us bolted directly into subframe so since the top one has perished, may be transferring the vibration.. I'm just hoping not the flywheel as there are zero other symptoms of a bad clutch
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Sep 17th, 2019, 07:43 | #6 |
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mounts
The mount you mentioned thats split, is this the drivers side one, worth taking a look at the one under the battery tray (fairly easy to change also), have you had a look under the car at the one at the back of the gearbox (has a larger vertical bolt into subframe i think), post some pics of what you have there 😀
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Sep 17th, 2019, 19:34 | #7 | |
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Quote:
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Sep 19th, 2019, 17:41 | #8 | |
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Let this be a lesson. Failing mounts on this P1 platform can manifest in all sorts of unusual vibration. Mine was 'diagnosed' as a faulty DMF. From my own research I ignored this and went for mounts. Saved myself best part of £800!!! |
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Oct 4th, 2019, 13:37 | #9 |
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Did you follow a guide to changing the mounts or is it pretty simple and self explanatory?
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Oct 4th, 2019, 14:44 | #10 | |
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Quote:
It's easy though. drivers side (rh).. lift up coolant tank off mount and tuck to one side. support engine underneath with Jack (carful to spport on a good spot with a piece of wood, NOT under air con compressor. There is a good spot near engine gearbox union). There are 4 bolts , two on engine (undo these first) then 2 holding mount to chassis. do these last. you may need to adjust jack to releive pressure. lift mount out, new one in, job done... LHS mount... safely disconnect battery, remove, remove battery tray (4 or 5 bolts). with engine still supported remove large central nut, this is the gearbox stud. once off remove the other 4 bolts and lift out mount. reverse with new mount. torque mount will need car on ramp or stands. hard to explain but very easy. 3 bolts for bracket.. 2 for transmission mount... find a vid on youtube.. there are lots. fyi, the vibration is greatly reduced, but it has revealed there is minor imbalance in DMF afterall, so I'll do this too. But mounts were shot anyway. Good luck! |
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