Me again! Been using the car a bit in the good weather. This morning, all was fine then I couldn't select 4th gear! This happened once already last week. Parked up at work and still the same, can't select 4rth, rest are fine. I read some similar threads on here, more so other gears. Is it possible it is the bush in the linkage? Does he lever just simply unbolt? (3 allen bolts) to get access to the linkage. Or is likely to e something within the box itself?
Help/Advice needed please. Pics of linkage/bushing too if possible. Job on the list is to check/change the oil. 75W 90 Semi the best grade?
Note: Some of the other gears have been getting a bit graunchy!
Won't gain anything by removing the lever really the problem will more than likely be in the box itself, although you mention graunchy in all gears may be the first signs of a clutch problem. Could be a worn selector arm, synchro ring or synchro hub itself. 75/90 semi is what I use in my type nines helical or straight cut.
I never built it, bought it as is. 4th gear seems to be okay again now. No idea of the cause, changing the box and diff oil tomorrow, possibly a clutch issue as noticed it of drag and difficult selecting other gears too. Change the oil first and see.
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