Gearbox mount (suspected)
#1 Gearbox mount (suspected)
I have a horrible noise coming from the gearbox cover when cornering fast. I suspect the gearbox mount needs replacing. Is there a tried and tested method of proving / disproving this, or is it a question of visual inspection?
Thanks
Thanks
1969 Series 2 2+2
E Type Club & JEC member
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#2 Re: Gearbox mount (suspected)
Visual, plus bouncing it around to replicate the clunk. Check the stabiliser and maybe back it off to ease the clunk investigations?
1E75339 UberLynx D-Type; 1R27190 70 FHC; 1E78478; 2001 Vanden Plas
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#3 Re: Gearbox mount (suspected)
What he said. Having the engine stabiliser too tight can lead to some awful noises from the tunnel.PeterCrespin wrote:Check the stabiliser and maybe back it off to ease the clunk investigations?
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia
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#4 Re: Gearbox mount (suspected)
I was just looking at a 2010 post on this topic. I understand the stabiliser should take NO static load, i.e. the engine/gbox should be completely supported by the engine mounts at the front and the big spring at the gearbox end. Then the stabiliser tightened up without exerting any upward lift on the unit.
Is that correct? And can an expert advise - is it worth replacing the rear spring (i.e. will it have sagged over 50 years)?
Is that correct? And can an expert advise - is it worth replacing the rear spring (i.e. will it have sagged over 50 years)?
Jeremy
1967 S1 4.2 FHC
1967 S1 4.2 FHC
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#5 Re: Gearbox mount (suspected)
Correct - it is a 'stabiliser' not a mounting point. Instructions for setting are in the service manual. Unlikely the big spring has failed although it could have been compressed with time I suppose. Try setting the stabiliser as per instructions and then take a view if the rear mount needs replacing.
David Jones
S1 OTS OSB; S1 FHC ODB
1997 Porsche 911 Guards Red
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
S1 OTS OSB; S1 FHC ODB
1997 Porsche 911 Guards Red
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
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#6 Re: Gearbox mount (suspected)
Thanks all. Can the gearbox mount be inspected / repaired from underneath the car, or do I need to remove the gearbox cover?
1969 Series 2 2+2
E Type Club & JEC member
E Type Club & JEC member
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#7 Re: Gearbox mount (suspected)
You get to it from under the car.... Steve
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc
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#8 Re: Gearbox mount (suspected)
Yes, drop the exhaust and you can remove the four bolts, it will then drop down. Getting it back does require some muscle though!
David Jones
S1 OTS OSB; S1 FHC ODB
1997 Porsche 911 Guards Red
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
S1 OTS OSB; S1 FHC ODB
1997 Porsche 911 Guards Red
Add your E-Type to our World Map: http://forum.etypeuk.com/viewtopic.php?f=1&t=1810
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#9 Re: Gearbox mount (suspected)
Beware, he spring is quite strong. Hold the plate in place using a jack while removing the bolts. Then release the jack slowly. Refitting needs the jack.Heuer wrote:Yes, drop the exhaust and you can remove the four bolts, it will then drop down. Getting it back does require some muscle though!
I removed mine when I discovered that continuous oil leaking has perished the rubber components. This allowed the spigot to rattle against the plate.
On my car I also found that a PO (an E-Type retailer no longer in existence) had use new bolts instead of set screws to mount the plate. The shank of these bolts had destroyed the threads of the captive nuts meaning I had to use new nuts on top of the captives to secure th plate. Not the easiest of tasks.
Chris '67 S1 2+2
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#10 Re: Gearbox mount (suspected)
To help disassemble and/or assemble this, you can back out one of the bolts and replace with a longer bolt of the same thread and then repeat with the others. Then go around again with even longer bolts.
What you are achieving is to safely handle the tension of the big spring using small steps as it'll only ever be able to jump as far as the longer bolt allows.
kind regards
Marek
What you are achieving is to safely handle the tension of the big spring using small steps as it'll only ever be able to jump as far as the longer bolt allows.
kind regards
Marek
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#11 Re: Gearbox mount (suspected)
Thanks again.
Am I right in saying that there are only two engine mounts? Looking at some of the diagrams, there seems to be what looks like a REAR engine mount?
Am I right in saying that there are only two engine mounts? Looking at some of the diagrams, there seems to be what looks like a REAR engine mount?
1969 Series 2 2+2
E Type Club & JEC member
E Type Club & JEC member
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#12 Re: Gearbox mount (suspected)
No. Only 2. It's confusing as the gearbox mount appears in the parts catalogue in the engine diagram (plate 1), between flywheel and rear oil seal. Took me a while to find it.
Jeremy
1967 S1 4.2 FHC
1967 S1 4.2 FHC
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#13 Re: Gearbox mount (suspected)
+1 for what Marek wrote, safest and one man job.
Ralph
'69 OTS + '62 OTS - Belgium
'69 OTS + '62 OTS - Belgium
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