In gear, but engine just revs

Discuss mechanical problems here.
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
Kimba
Newbie
Posts: 1
Joined: Sat May 30, 2009 1:40 am
MMOC Member: No

In gear, but engine just revs

Post by Kimba »

Hi, I have a 1951 1000 (I think it was converted from a side valve at some point i.e. I have only had the car for 23 years). I was doing a right hand turn, changed down to second, released the clutch, and nothing happened.
If I put it into gear and release the clutch I cannot stall it. Is it a clutch problem, a drive shaft?
Hope you can help.
charlie_morris_minor
Minor Legend
Posts: 1989
Joined: Wed May 10, 2006 1:47 pm
Location: Aldershot
MMOC Member: No

Post by charlie_morris_minor »

hello Kimba welcome aboard..

I believe and will probably corrected by the next post but it sounds like your clutch has gone. if you had broken a half shaft in the axle it would make a great deal of noise as the two bits of half shaft hit each other. If it was the prop shaft again it would make a noise and you would hear a bit dragging on the floor if indeed it is possible to "break" it in the way I have described...

I would be tempted to put the car on some axle stands, put it in gear and use the starting handle to turn the engine over.. do not run the engine with the car on stands in case it comes off the stands.

but i think the most likely is a failed clutch as you have identified.
Alec
Minor Legend
Posts: 2148
Joined: Thu Apr 15, 2004 7:29 am
Location: Oswestry, Shropshire
MMOC Member: No

Post by Alec »

Hello Kimba,

I think it is more likely to be a half shaft as the loss of drive is so sudden. It doesn't necessarily make a noise after a shaft breaks.

Alec
kennatt
Minor Legend
Posts: 2625
Joined: Fri Feb 02, 2007 9:11 pm
MMOC Member: No

Post by kennatt »

just start it up put into gear let the clutch out and then look under and see if the prop shaft is turning. If yes then its the half shaft if no then its the clutch or gear box
bmcecosse
Minor Maniac
Posts: 46561
Joined: Wed Feb 16, 2005 11:24 pm
Location: ML9
MMOC Member: No

Post by bmcecosse »

Just look at the speedo - if it's reading a speed - it's a half-shaft. No speed -it's the clutch centre which has ripped out of the plate.
99% sure it will be half shaft - although I have had both faults over the years!
ImageImage
Image
Matt
Minor Legend
Posts: 3845
Joined: Fri Apr 16, 2004 1:30 pm
Location: Hampshire/Berkshire/Gloucstershire/Herefordshire
MMOC Member: No

Post by Matt »

Good tip there Mr Ecosse :)
Serial Morris Minor Owner and Old Vehicle Nutter
mike.perry
Series MM Registrar
Posts: 10183
Joined: Sun Jul 24, 2005 11:39 pm
Location: Reading
MMOC Member: No

Post by mike.perry »

If the engine has been changed from a side valve, has the rear axle been changed as well? The original rear axle has a square shaped diff case and the later axle has a circular diff case. The internals are completely different.
I'm for a broken half shaft.
Last edited by mike.perry on Tue Jun 02, 2009 10:05 pm, edited 1 time in total.
[sig]3580[/sig]
User avatar
eastona
Minor Fan
Posts: 394
Joined: Sat Jan 14, 2006 11:47 pm
Location: Glos
MMOC Member: No

Post by eastona »

I've done two halfshafts (Land-Rover and Midget, only one of which made it home under it's own power afterwards!)

There was no grinding noise, just a lack of forward (or rearward) motion.

Good tip BMC. My money's on a halfshaft.

Andrew
Maggie, 1969, 4 door, Almond Green.
And Project "Traveller"...
[sig]4253[/sig]
bmcecosse
Minor Maniac
Posts: 46561
Joined: Wed Feb 16, 2005 11:24 pm
Location: ML9
MMOC Member: No

Post by bmcecosse »

I broke a shaft on my rally Minor - luckily the broken part wedged in the diff and I was able to drive home. The Landy would drive home on the other axle !
ImageImage
Image
cormorant
Minor Fan
Posts: 220
Joined: Wed Apr 15, 2009 2:10 pm
MMOC Member: No

Post by cormorant »

Yes I had a halfshaft break on my van about 10 yrs ago and there were no nasty noises. I was lucky - it was a really neat break with no metal bits in the diff and no damage to the diff so just had to replace a shaft.

Seem to remember the speedo thing now bmc mentions it, and yes it was all very sudden! Good luck
Post Reply