jamesmartin
Well-Known Member
looks like a parts of a synchro detent spring
VictorVictor
Member
Gear changes are OK if you're kind to it. Guess it's a wait and see. Wondered if it might be a part from the synchro.
VictorVictor
Member
Detent spring is flat? Some of those bits are round. More like a wire coil spring.
Agreed 2A syncho springs are flat (mine ate one so I know what they look like mashed up!) could this be an S3 box? Otherwise could it be a detent spring that someone has dropped in the box and lost? If its working fine then I would drive carefully and see how it goes. You could take the top off and look carefully inside but its not easy to see much. Only other option is a strip down. Mine had a mashed synchro (flat) spring in the bottom (found doing an oil change) and I kept using it but the gear changes were hard and I missed a gear and stripped the teeth so I had to rebuild the box anyway but mine was definitely a synchro spring, yours may not be.
OK I've checked the parts book. S2A only has flat spring on 3/4 synchro, S3 has flat on 3/4 and coil springs on 1/2 part number 503805. This looks very much like one of those.
So first check whether your box is S2A or S3. If its S2A its only got synchro on 3/4 if its S3 its all synchro.
If its S2A who knows the it came from, if its S3 its odds on a 1/2 synchro spring. This does mean a strip or at least an inspection as there are several per gear and if one is chewed the synchro ring will run out of line.
As I said above, I ran mine with a chewed synchro spring and turned that problem into a sized box and 2 broken gears, the lack of synchro meant I fluffed a down change on an emergency stop and broke a couple of teeth off which then flipped up into the gear mesh and stopped me dead 120 miles from home. good luck!
So first check whether your box is S2A or S3. If its S2A its only got synchro on 3/4 if its S3 its all synchro.
If its S2A who knows the it came from, if its S3 its odds on a 1/2 synchro spring. This does mean a strip or at least an inspection as there are several per gear and if one is chewed the synchro ring will run out of line.
As I said above, I ran mine with a chewed synchro spring and turned that problem into a sized box and 2 broken gears, the lack of synchro meant I fluffed a down change on an emergency stop and broke a couple of teeth off which then flipped up into the gear mesh and stopped me dead 120 miles from home. good luck!
Colthebrummie
Well-Known Member
A down change during an emergency stop? You must be a better driver than me cos my emergency stops just consist of stamping on brake and clutch pedals and hoping for the best.
Col
VictorVictor
Member
Thanks all. Haven't found the gearbox number yet but will do so and go from there. While I'm at it, can anyone direct me to a definitive guide for identifying engine age and type from engine number. Mine is 90149933A. The vehicle is 1969 Series 2A LWB Station Wagon 2.25L petrol but from what I've read & pieced together that looks like a Series 3 engine number?? If correct it supports the theory that the bits of metal in my gear oil are a series 3 synchro spring.
VictorVictor
Member
Found this useful resource, which confirms mine is a S3 engine. http://www.glencoyne.co.uk/engno.ht...r serial number: On,left hand (dipstick) side.
