Important! : Gearbox mount snapped!!

1. user_36702 Regular Poster Joined: Aug 2009 Blaze'nSmoke (Basingstoke) Posts: 292 Saxo VTR

   #1 1st February 2011, 20:27

   Driving home and the gearbox mount snapped!! pissing oil all over the road and the engine has slumped.
   
   the gearbox has snapped off the bolts. Is there another engine mount or is the ns of the engine held up by the gearbox mount?
   
2. Gumbo Frequent Poster Joined: Sep 2008 Basildon Posts: 795 Derv shed

   #2 1st February 2011, 20:30

   mount snapped or the 3 studs that skrew into your gearbox? i had this, just managed to get the studs out
3. user_49133 Infrequent Poster Joined: Dec 2010 Thanet/Oxford Posts: 249 Saxo VTR Mk2

   #3 1st February 2011, 20:40

   If the engine has slumped, is it the mount on the battery tray?
4. user_36702 Regular Poster Joined: Aug 2009 Blaze'nSmoke (Basingstoke) Posts: 292 Saxo VTR

   #4 1st February 2011, 22:29

   Quote:

   Originally Posted by Gumbo mount snapped or the 3 studs that skrew into your gearbox? i had this, just managed to get the studs out

   Hopefully just the 3 bolts... Gonna try get them out 2moro. Was it easy?
5. user_36702 Regular Poster Joined: Aug 2009 Blaze'nSmoke (Basingstoke) Posts: 292 Saxo VTR

   #5 1st February 2011, 22:30

   Quote:

   Originally Posted by Mattquantrill101 If the engine has slumped, is it the mount on the battery tray?

   Removed battery, think that's gone too couldn't really see as it's dark
6. LeeM Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi

   #6 1st February 2011, 22:32

   wheres the oil coming from?
7. Gumbo Frequent Poster Joined: Sep 2008 Basildon Posts: 795 Derv shed

   #7 1st February 2011, 22:41

   Quote:

   Originally Posted by superCREG Hopefully just the 3 bolts... Gonna try get them out 2moro. Was it easy?

   Wasnt Bad just be careful use small moll grips if not re-drill and tap or use easy-outs, had the same thing, was it you violent when coming off the clutch?
8. atspeedracing Frequent Poster Joined: Aug 2008 ESSEX Posts: 727 106 GTi Turbo

   #8 1st February 2011, 22:52

   this is very common on the MA box. the problem is usually not actually the gearbox mount at fault, but excessive movement generally caused by the lower mount being worn. torque and twist of the engine is then taken on the gearbox upper mount, and only being 8mm studs. tend to snap. or snap the casing completely.
   
   (also worth noting: the nut that goes onto the stud above the mount can vibrate loose, make sure you ALWAYS use a nyloc nut)
   
   when this happens it makes a mess, as the engine is unsupported, and it pulls the shaft out rendering the car drive less. on my own car i have fabricated a lower support so that in the event of a mount failure, the gearbox lands on something, so at least i can drive home.. rather than having the thing fall out.
   
   we did a modification on one of my gearbox casings, drilled and tapped to take high tensile M10 studs rather than 8mm. combined with a heavily uprated lower gearbox mount i never had this problem again (this was @ 300bhp). although i strongly recommend uprating the gearbox upper mount if you drive the car hard or do any trackdays.
   
   extreme horsepower or long term track use.. competition engine mounts all round.
   
   - colin.
9. Gumbo Frequent Poster Joined: Sep 2008 Basildon Posts: 795 Derv shed

   #9 1st February 2011, 22:55

   Quote:

   Originally Posted by atspeedracing this is very common on the MA box. the problem is usually not actually the gearbox mount at fault, but excessive movement generally caused by the lower mount being worn. torque and twist of the engine is then taken on the gearbox upper mount, and only being 8mm studs. tend to snap. or snap the casing completely. (also worth noting: the nut that goes onto the stud above the mount can vibrate loose, make sure you ALWAYS use a nyloc nut) when this happens it makes a mess, as the engine is unsupported, and it pulls the shaft out rendering the car drive less. on my own car i have fabricated a lower support so that in the event of a mount failure, the gearbox lands on something, so at least i can drive home.. rather than having the thing fall out. we did a modification on one of my gearbox casings, drilled and tapped to take high tensile M10 studs rather than 8mm. combined with a heavily uprated lower gearbox mount i never had this problem again (this was @ 300bhp). although i strongly recommend uprating the gearbox upper mount if you drive the car hard or do any trackdays. extreme horsepower or long term track use.. competition engine mounts all round. - colin.

   Spot on
   
   (Mini hijack I do love you car haven't seen it since it had cyclones on up pips hill in basildon)
10. atspeedracing Frequent Poster Joined: Aug 2008 ESSEX Posts: 727 106 GTi Turbo

    #10 1st February 2011, 23:06

    (mini hi-jack continued... that was some years ago then!! been fully stripped and rebuilt since lol)
11. Liam Saxperience Forum Bum Joined: Jun 2007 Swindon Posts: 2982 Black VTS

    #11 1st February 2011, 23:08

    It happened to me when my release bearing collapsed. The 'oil' turned out to be grease from the CV becoming bent under the load from the engine and gearbox.
12. Gumbo Frequent Poster Joined: Sep 2008 Basildon Posts: 795 Derv shed

    #12 1st February 2011, 23:40

    Quote:

    Originally Posted by atspeedracing (mini hi-jack continued... that was some years ago then!! been fully stripped and rebuilt since lol)

    Year about two years ago as i hadnt had my license long, blimey cant image how fast that must be now!
13. user_36702 Regular Poster Joined: Aug 2009 Blaze'nSmoke (Basingstoke) Posts: 292 Saxo VTR

    #13 6th February 2011, 22:09

    Quote:

    Originally Posted by Gumbo Wasnt Bad just be careful use small moll grips if not re-drill and tap or use easy-outs, had the same thing, was it you violent when coming off the clutch?

    Yh, very violent off the clutch then the clutch pedal disappeared went all the way in and crunch, horrible noise, haunts me
14. Tyanu888 Infrequent Poster Joined: May 2009 Malta Posts: 144 Citroen Saxo VTS (hill climb racer), Citroen AX Gt

    #14 11th February 2011, 21:17

    yepp in fact many boxes snap open from the diff side if the top gbox mount is loose! The lower mount tends to go easily, i recently found out it has a plastic casing! Now i put solid grpA mountings and its all solid! I needed them especially with a low close ratio box which i use in hill climbs!
15. Tyanu888 Infrequent Poster Joined: May 2009 Malta Posts: 144 Citroen Saxo VTS (hill climb racer), Citroen AX Gt

    #15 11th February 2011, 21:21

    I bought mine from Spoox!
    http://www.spoox.co.uk/catalog/
    They are excellent!