Home
We have a customers car in at the moment which was delivered to us on a low loader for engine rebuild and other work
The car did actually start and drive but the bigend was clearly in a very poor state as the knock was lets say extremely loud so it had been driven like that for some time amazingly enough.
Anyway we pulled the engine and stripped her down to see how bad the damage was and in a nut shell the bearing had spun and partially welded itself to the crank but it went way beyond that
the welded part had long worn off with the continued use of the car.
Take a look at these photos and measurements then you will see just how badly this had worn.
How on earth it never through a rod through the block, snapped the rod bolts, broke the rod or snapped the crank I really just don't know
but its a testament to just how strong the parts can be for these little cars.
vertical measurement of the id of rod 53.25
lateral id 57.11mm
The bad rod compared to a good stock rod, note the ovality of the rod by looking at the edges around it where it has been worn away
the spun big end crank journal 45.67
was that badly worn it no longer looked worn lol
And finally to prove this was a stock unground crank heres a measurement from one of the other good journals
Now minus the lesser figure of the rod being 53.25 from the worn crank journal and it gives you a whopping clearance of.............7.42mm
The worst ive ever actually seen with the car still running lol
Anyway open to offers for this crank and rod which are a true one off rarity so no silly offers please
The car did actually start and drive but the bigend was clearly in a very poor state as the knock was lets say extremely loud so it had been driven like that for some time amazingly enough.
Anyway we pulled the engine and stripped her down to see how bad the damage was and in a nut shell the bearing had spun and partially welded itself to the crank but it went way beyond that
the welded part had long worn off with the continued use of the car.
Take a look at these photos and measurements then you will see just how badly this had worn.
How on earth it never through a rod through the block, snapped the rod bolts, broke the rod or snapped the crank I really just don't know
but its a testament to just how strong the parts can be for these little cars.
vertical measurement of the id of rod 53.25
lateral id 57.11mm
The bad rod compared to a good stock rod, note the ovality of the rod by looking at the edges around it where it has been worn away
the spun big end crank journal 45.67
was that badly worn it no longer looked worn lol
And finally to prove this was a stock unground crank heres a measurement from one of the other good journals
Now minus the lesser figure of the rod being 53.25 from the worn crank journal and it gives you a whopping clearance of.............7.42mm
The worst ive ever actually seen with the car still running lol
Anyway open to offers for this crank and rod which are a true one off rarity so no silly offers please
