StuartG Posted February 1, 2020 Report Share Posted February 1, 2020 So I got the TR out of the garage today reversed out onto the road and could not select 1st 2nd or 3rd gear. Managed to finally get it into 2nd and took it for a short distance but had to return home as gears almost impossible to select. Went to check clutch fluid and noticed two blobs of clutch fluid on the TOP of the master cylinder cap. I had topped up the fluid a couple of weeks ago, is it possible to put too much in and / or could the tiny breather hole in the cap be an issue ? Any inspiration much appreciated...... PS I fitted a new master cylinder 5 years ago. Quote Link to post Share on other sites
RogerH Posted February 1, 2020 Report Share Posted February 1, 2020 Hi Stuart, too much fluid should not affect gear selection. It may affect your engine bay paint work though. Do all the simple checks first Does the slave cylinder push the cross shaft arm correctly. etc etc. It is always possible that the taper pin in the cross shaft has snapped. Roger Quote Link to post Share on other sites
StuartG Posted February 1, 2020 Author Report Share Posted February 1, 2020 Thanks will check slave movement Quote Link to post Share on other sites
Fireman049 Posted February 1, 2020 Report Share Posted February 1, 2020 (edited) . Edited April 15, 2020 by Fireman049 Quote Link to post Share on other sites
Fireman049 Posted February 1, 2020 Report Share Posted February 1, 2020 (edited) . Edited April 15, 2020 by Fireman049 Quote Link to post Share on other sites
StuartG Posted February 1, 2020 Author Report Share Posted February 1, 2020 That looks scary. Another clue is that I can change and engage all the gears easily without the engine running. I will check on the slave etc in the morning. Quote Link to post Share on other sites
RogerH Posted February 1, 2020 Report Share Posted February 1, 2020 Hi Stuart, your extra clue is significant. It is 99% certain the taper pin is broken. The duff taper pin means that even with max pedal extension the clutch disc is still spinning. This stop gear engagement . With the engine off gear selection is easy because the clutch is no longer spinning. Have ever taken a GB out? Roger Quote Link to post Share on other sites
StuartG Posted February 1, 2020 Author Report Share Posted February 1, 2020 Gearbox out is beyond my skills Roger so looks like piggy bank is about to get a hamering Quote Link to post Share on other sites
RogerH Posted February 1, 2020 Report Share Posted February 1, 2020 Hi Stuart, do you visit your local group. If so can they localise the issue before you spend money. Is there anybody there to take the GB out Roger Quote Link to post Share on other sites
StuartG Posted February 1, 2020 Author Report Share Posted February 1, 2020 Hi Roger I will be seeing helpful folk of TR Chilterns on Wednesday so will be picking their brains ! Quote Link to post Share on other sites
StuartG Posted February 2, 2020 Author Report Share Posted February 2, 2020 Checked thE slave cylinder this morning and have 16mm of shaft movement which I believe is correct so it is the taper pin that is the problem. Quote Link to post Share on other sites
Fireman049 Posted February 2, 2020 Report Share Posted February 2, 2020 (edited) . Edited April 15, 2020 by Fireman049 Quote Link to post Share on other sites
Fireman049 Posted February 2, 2020 Report Share Posted February 2, 2020 (edited) . Edited April 15, 2020 by Fireman049 Quote Link to post Share on other sites
peterq Posted February 2, 2020 Report Share Posted February 2, 2020 Hi Stuart, first check movement on the crankshaft, the same symptoms occur when the trust washers dropped out. Try to move the front pulley with a bar to the front and to the rear. If the washers dropped you will have 5-6 mm movement. Don‘t start the engine until you are sure this is not the case. Regards Peter. Quote Link to post Share on other sites
StuartG Posted February 2, 2020 Author Report Share Posted February 2, 2020 Thanks for all the advise chaps Quote Link to post Share on other sites
astontr6 Posted February 3, 2020 Report Share Posted February 3, 2020 On 2/1/2020 at 5:53 PM, RogerH said: Hi Stuart, do you visit your local group. If so can they localise the issue before you spend money. Is there anybody there to take the GB out Roger Hi Roger, I know the gear box job very well as I had to remove it 3 times in one month because of poorly greased thrust bearings from Moss and only overcame the problem when I found out that my local bearing distributor had RHP ones in stock, packed in poly bags so that the grease did not dry out unlike the Moss ones and was commonly used in the manufacturing industry, Bruce. Quote Link to post Share on other sites
RogerH Posted February 3, 2020 Report Share Posted February 3, 2020 21 hours ago, peterq said: Hi Stuart, first check movement on the crankshaft, the same symptoms occur when the trust washers dropped out. Try to move the front pulley with a bar to the front and to the rear. If the washers dropped you will have 5-6 mm movement. Don‘t start the engine until you are sure this is not the case. Regards Peter. +1 Quote Link to post Share on other sites
ntc Posted February 3, 2020 Report Share Posted February 3, 2020 On 2/1/2020 at 3:23 PM, StuartG said: So I got the TR out of the garage today reversed out onto the road and could not select 1st 2nd or 3rd gear. Managed to finally get it into 2nd and took it for a short distance but had to return home as gears almost impossible to select. Went to check clutch fluid and noticed two blobs of clutch fluid on the TOP of the master cylinder cap. I had topped up the fluid a couple of weeks ago, is it possible to put too much in and / or could the tiny breather hole in the cap be an issue ? Any inspiration much appreciated...... PS I fitted a new master cylinder 5 years ago. Stuart The clue is in your post ie fluid top up the pin has most likely broke and the movement you stated later on is correct at the slave. One thing to check is the slave mounted on the right side of the bellhousing. Quote Link to post Share on other sites
astontr6 Posted February 4, 2020 Report Share Posted February 4, 2020 17 hours ago, RogerH said: +1 But also check all the Clevis Pin holes on the whole system as they wear oval, especially the one in the top of the clutch pedal M/S operating arm as I had to bush mine with marine bronze years ago, only after 15K. Bruce. Quote Link to post Share on other sites
StuartG Posted March 6, 2020 Author Report Share Posted March 6, 2020 So this is how the problem panned out. Took car to TR specialist who on taking the gear box out discovered that the clutch fork was already welded to the bar. They changed the clutch, thrust bearing and master cylinder, the result of which is that the car changes gear better than it ever has in the 9 years I have owned it. Quote Link to post Share on other sites
RogerH Posted March 6, 2020 Report Share Posted March 6, 2020 Hi Stuart, the welded fork is the simple get you home (from holiday) repair. Less work than taking the GB fully out. Roger Quote Link to post Share on other sites
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