Strong vibration above 50 mph

Post by **Declan_Burns** » Thu Jul 30, 2009 6:47 am

Miel,
Mike is quite right saying it's easier to just replace it. I bought a second hand one from BM and it cost about 60€ including postage to Düsseldorf-I would go for it-it's not worth the hassle.

Post by **bmcecosse** » Thu Jul 30, 2009 9:42 am

First - undo the bolts holding prop to diff - rotate 180 degrees, and refit. It's worth a try!

Post by **8009STEVE** » Fri Jul 31, 2009 10:32 am

miel, how close to Belgium are you? I have a second hand prop and we are staying in Belgium wednesday Aug 12, on our way to Switzerland.

Post by **Declan_Burns** » Fri Jul 31, 2009 11:51 am

Now that's what I call being helpful-well done Steve. Miel, you won't get a better offer than that.

Post by **Declan_Burns** » Fri Jul 31, 2009 11:59 am

Steve,
You will probably bump into Rolf Corbat at the Swiss Rally. He's the guy who makes these infamous teflon eybolt kits. I would be interested to hear your opinion on your return-safe journey!

Post by **bmcecosse** » Fri Jul 31, 2009 5:21 pm

Do tell - about the Teflon eyebolt kits ??

Post by **miel.gerritse** » Fri Jul 31, 2009 7:55 pm

Steve,

Thank you very much indeed for your offer and it would only take me 1,5 hrs drive to Antwerp (living in Utrecht), but...... From 7 to 21 August I will be in the UK on holiday, staying near Cheltenham

. I was already searching for a Morris Minor Spares company in that area. Have you got a suggestion perhaps?

Post by **8009STEVE** » Sun Aug 02, 2009 11:44 am

Miel. You are about mid way between Bristol and Birmingham. Both have Morris Minor shops so the choise is yours, depending on your itinery in the U.K.

Post by **mike.perry** » Mon Aug 03, 2009 9:31 am

Back to the comment on steering play which seems to have been overlooked
Before you go changing steering rack check that the steering wheel nut is tight (3/4 Whit socket) and check the pinch bolt at the bottom of the steering column

Post by **8009STEVE** » Mon Aug 03, 2009 1:50 pm

comment on steering play

Track rod ends?

Post by **miel.gerritse** » Wed Aug 05, 2009 11:01 am

I have checked the front suspension and nothing is loose.
I strongly suspect the unbalance of the prop shaft now, as suggested in previous comments, especially after my test to engage neutral when driving and the vibration immediately got worse.

Post by **miel.gerritse** » Wed Nov 18, 2009 2:35 pm

Dear All,

After quite some time and trail and error, I found what caused the vibration. That i would like to share with you, so others can benefit.

After the last post, I have had another props shaft mounted, but it did not solve anything. So , just to be sure, I had my original propshaft balanced. No result. Then I had a appoimtment with my local garage and had the car running on axle stands, so that we could actually see under the car if something was wrong. And it was! It was the flange on the diff (to which the propshaft is connected) that was not rotating in a plane, but was wiggling a bit (not sure if thats proper English). The strange thing is that on earlier check, there was no play at all, so didn't suspect the diff in the first place.

I located a refurbished diff. replaced it and the vibration was gone!!
I took the old diff apart and it seemed that the bearings were OK, but closer inspection revealed a strange assymmetrical wear in the bearings, resulting in an off set as soon as the pinion nut was tightened.

Lesson learned is that first thing to do is having the car lifted on axle stands and look! (be sure that the car is secured though).

Many thanks to all for their advice!

Miel

Post by **bmcecosse** » Wed Nov 18, 2009 10:05 pm

Well done - and thanks for coming back with the solution. That's certainly a strange one !

Morris Minor Owners Club

Strong vibration above 50 mph

Strong vibration over 50 mph

Strong vibration over 50 mph

Strong vibration over 50 mph