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A frame nightmares.

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Tommo:
went to pick up a 5 series beemer with a blown headgasket today, stuck the a frame on to the bottom arms as usual, went to drive off and which ever way you turned the beemers wheels went full lock the opposite way, with some rather interesting concequeces lol.

Ended up just driving it with no water in, lasted about 25 mins till it lost oil pressure, then lasted another 15 with the big ends knocking there nuts off, after that it was very hard to drive because it only ran above about 3k rpm (some very interesting heel/toe braking going on at traffic lights trying to keep it going) then we hooked up a rigid towing bar (kindly supplyed by corrosive rob as a backup) after managing to find a proper tow hitch.

So has anyone got any idea what went wrong with the A frame??? towed a pug 406 estate with it before and towed me 90 back from mansfield on the motorway and everything ( [-X) with no issues.

Disco Matt:
I can only assume it was something to do with the steering on the BMW - A frames work as the steering will follow the direction the car is being towed in (why you can't reverse with them - the wheels will tend to turn to one lock or the other!).

BMWs are all RWD, while your 90 and the 406 would have driveshafts going to the front wheels. I wonder if that had something to do with it?

fudge:
Isn't it something to do with weather the tie rods are in front of or behind the hub, and if they are in front of the hub the car won't tow behind a dolly?

Tommo:
even then i think they are still behind the hub. but any car with castor (ie all cars surely) should always wint to return to centre and should never just flip on to one lock or another whilst being pulled forward.

Disco Matt:
That might well make sense - If you think about it having the tie rods behind would probably make the wheels more inclined to follow the direction of travel rather than wandering about.

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