steering wheel shake

[michael47]

G’Day All
When I purchased my Marina based LWB roadster 2years ago it had a bad shake at about 60 MPH,I assumed wheel balance and had them balanced which helped but it did not go away so I took it back to the shop and they checked the balance and found everything OK .They did notice that the both front tires had flat spots as the car had sat for 3 or 4 years.It was not a big problem as I use it mostly on small back roads and if I venture out on the freeway I take it up to70 MPH and it is gone.This week I finally got new tires and had them balanced and much to my surprise the shake is still there at about 60 to 65 MPH! Has anybody any thought as to what else might cause the what feels like a wheel balance problem but is not
Thanks
MichaelIMG_3911.JPG

[Alan c]

Re: steering wheel shake

I have similar problem I would also be interetsed in thoughts.

I did have non concentric wheel spacers - replaced them and it helped a bit.

[h_m_cumming]

Re: steering wheel shake

Have you had you're tracking done by someone who knows what they're doing and get a printout. This will let you see if there is something not right or different on each side.

[stevejgreen]

Re: steering wheel shake

It is unlikely, but have you got a warped front disk or a rubbing brake pad. It can produce similar effects to being out of balance.
Obviously when cool or the wheels are off the car, there is little to find.

[michael47]

Re: steering wheel shake

Might be the answer . I have a mate who has the tool to measure it. I gather the idea would be to heat up the brakes and pull the wheel immediately and mount the tool and spin the disc .I sort of hope that it is the problem on the other hand finding Marina discs over here is a problem
thank for the tip

It is unlikely, but have you got a warped front disk or a rubbing brake pad. It can produce similar effects to being out of balance.
Obviously when cool or the wheels are off the car, there is little to find.

[stevejgreen]

Re: steering wheel shake

Might be the answer . I have a mate who has the tool to measure it. I gather the idea would be to heat up the brakes and pull the wheel immediately and mount the tool and spin the disc .I sort of hope that it is the problem on the other hand finding Marina discs over here is a problem
thank for the tip

Don't quote me on it. Before you go down the measuring route, gave a check of the caliper pistons making sure that both move freely on each side. A worthwhile exercise in itself as part of routine maintenance.

Its a long shot, but in the abcence of other advice, worth a go.

[h_m_cumming]

Re: steering wheel shake

Couple here if you're stuck.

http://www.morrisminorspares.com/brakes-c42/front-disc-brakes-c45/brake-disc-marina-minor-each-p829469

https://www.morrisminor.org.uk/parts/111-suspension-brake-upgrade-options/1800-brake-disc-marina

[stevejgreen]

Re: steering wheel shake

Couple here if you're stuck.

http://www.morrisminorspares.com/brakes-c42/front-disc-brakes-c45/brake-disc-marina-minor-each-p829469

https://www.morrisminor.org.uk/parts...ke-disc-marina

As previously mentioned elsewhere recently. Any changes to the brake, steering or suspension system should be carried out on both sides simultaneously, simply dealing with a single side is a recipe for disaster.

The prices here are for single disks and do not include brake pads, or caliper seals, shims etc.

Buyer beware as always, it’s easy to get caught out.

[listerjp2]

Re: steering wheel shake

"Buyer beware" , so where do you suggest we get them from?

Adrian

As previously mentioned elsewhere recently. Any changes to the brake, steering or suspension system should be carried out on both sides simultaneously, simply dealing with a single side is a recipe for disaster.

The prices here are for single disks and do not include brake pads, or caliper seals, shims etc.

Buyer beware as always, it’s easy to get caught out.

[stevejgreen]

Re: steering wheel shake

"Buyer beware" , so where do you suggest we get them from?

Adrian

Surely it is not necessary to repeat advice given a month or so ago!

A simple eBay search will find several suppliers. But EBC feature quite highly, selling a pair of discs and necessary brake pads.
Many suppliers use generic photos of their products, showing vented discs and not solid ones. Read the description thoroughly to see what you are actually buying, and whether it’s compatible with your particular donor car, email them if you have any concerns.
I would always be cautious of a product that is not specific to your donor car, it might fit perfectly, it might not.

Sure you can buy single discs, but as anyone with any sense would be replacing both along with the brake pads, it would seem most sensible to buy a complete package, with a single postage charge, than split it down individually.

It is of course entirely up to the purchaser as to what they ultimately buy, just be sure you are buying exactly what is sensible to replace for your own and others safety, preferably in this case, from a brake specialist like EBC.

I generally dislike giving links to eBay suppliers, they are in many ways transient. I prefer to go direct to the main suppliers website.

https://www.ebcbrakeshop.co.uk/

There are of course multiple other suppliers around the world, I have no intention of listing them, and have no personal experience of purchasing from them.

I hope this clears up any further random questions.

As always, buyer beware!

[listerjp2]

Re: steering wheel shake

Thankyou

That's very helpful.

Adrian

[Alan c]

Re: steering wheel shake

Never cnsidered brakes good tip

Mind you I would have thought warped discs would have given pulsing thru brake pedal

[dave_clutterbuck]

Re: steering wheel shake

My Hunter had the same problem at around 60-70 mph, on this occasion worn steering column bushes were found to be the problem

[stevejgreen]

Re: steering wheel shake

My Hunter had the same problem at around 60-70 mph, on this occasion worn steering column bushes were found to be the problem

That’s quite a quick fix on a Marina based Roadster and I would guess that parts are readily available in BC.

Starting from the very bottom the U-joint is common to many Triumph cars, the big Donut is from a Triumph 2000 and others, the upper and lower bushes, one plastic and one oil soaked felt are classic mini.

If you want part numbers, I can dig them out.

[stevejgreen]

Re: steering wheel shake

Never cnsidered brakes good tip

Mind you I would have thought warped discs would have given pulsing thru brake pedal

If a brake pad is rubbing on the disc constantly, it generates a lot of heat, an infrared thermometer is great for diagnosis.
It’s the heat that warps the disc, that generally flattens out when cools. If you get the vibration whilst driving at a regular speed, the vibration is there before you apply the brakes, and when you do, you are already thinking about the vibration.

I’m not claiming that this is my definitive diagnosis, but it’s something I have come across before. Once on a RWD car, I thought the problem lay in a worn constant velocity joint. It wasn’t, a close examination of the brakes, after burning my fingers on a very hot disc, located a stuck caliper and the solution to the problem.