Thanks for the video Chris. What is most interesting is to see some of the differences between your motor and my '71 T150V . For example, my intermediary gear has a caged needle bearing. Yours has a bronze bush. Your cam gears appear to have two holes for fitting a puller. The '71 cam gears have a threaded shoulder - like also used on the old Bonneville engines -which allows the use of the Triumph factory puller for that purpose. Keep up the good work. Tridents are lovely engines but fiddly when rebuilding and not for the faint hearted lol. No mistake is forgiven as I've found out the hard way in the past.
That's great, thanks for reminding me of some of the changes to the engine over the years. I didn't know about the caged roller bearing for the intermediate timing pinion! Was that standard or an upgrade? You probably also have the earlier primary chain tensioner, the extra oil feed to the exhaust camshaft, and longer valves amongst other things. Thanks again for the reminder.
@@Chris.rooke150 Cheers Chris. The center gear uses a needle not roller bearing. It's still drip fed oil through the spindle. I'm not aware of the difference between the old primary chain tensioner and the later model. The '71 tensioner has a threaded plug at the lower front of the primary chain case, giving access to the chain tensioning screw. What are the later versions like? I modified the tensioning screw on mine by cutting away the slot intended for a flat bladed screwdriver and welding on a metric grub screw. I found that using a screwdriver to adjust the primary was clumsy at best and otherwise damn fiddly. Also the screw driver blade would sometimes scrape the plug threads even when being careful. Now I can tighten or loosen the chain using a 5mm hex head (allen) wrench with my eyes closed. My engine did indeed have the oilers you mention. Triumph did away with those in '72 I think. They also had a service bulletin saying to blank them off as they weren't needed and affected oil pressure to the crankshaft as I understood it. So that's what I did. Your video states in the title that your motor is from 1975. Wouldn't that make it a T160 motor, the final year for the Trident? My Trident, a US model, is supposed to be a 1972, T150V; but the engine stamping shows it to be made in '71. Perhaps Triumph just put whatever engines they had on stock even if it didn't correspond to the production year...dunno really.
It sounds like yours does have the early type primary chain tensioner. The later ones have a large bolt that screws up from underneath. The engine I'm working on is a replacement and has no date stamp on it! I know it's late though, from the tappets etc. Triumph began making their engines the year before the model year, so a '74 model may have an engine built in '73, but they continued making the engines into the next year, so a '74 model can also have a '74 engine. Mine could therefore possibly be a '74 or '75 engine, built just before they began building the T160s - no real idea....
Thanks for the video Chris. What is most interesting is to see some of the differences between your motor and my '71 T150V . For example, my intermediary gear has a caged needle bearing. Yours has a bronze bush. Your cam gears appear to have two holes for fitting a puller. The '71 cam gears have a threaded shoulder - like also used on the old Bonneville engines -which allows the use of the Triumph factory puller for that purpose. Keep up the good work. Tridents are lovely engines but fiddly when rebuilding and not for the faint hearted lol. No mistake is forgiven as I've found out the hard way in the past.
That's great, thanks for reminding me of some of the changes to the engine over the years. I didn't know about the caged roller bearing for the intermediate timing pinion! Was that standard or an upgrade? You probably also have the earlier primary chain tensioner, the extra oil feed to the exhaust camshaft, and longer valves amongst other things. Thanks again for the reminder.
@@Chris.rooke150 Cheers Chris. The center gear uses a needle not roller bearing. It's still drip fed oil through the spindle.
I'm not aware of the difference between the old primary chain tensioner and the later model. The '71 tensioner has a threaded plug at the lower front of the primary chain case, giving access to the chain tensioning screw. What are the later versions like?
I modified the tensioning screw on mine by cutting away the slot intended for a flat bladed screwdriver and welding on a metric grub screw. I found that using a screwdriver to adjust the primary was clumsy at best and otherwise damn fiddly. Also the screw driver blade would sometimes scrape the plug threads even when being careful. Now I can tighten or loosen the chain using a 5mm hex head (allen) wrench with my eyes closed. My engine did indeed have the oilers you mention. Triumph did away with those in '72 I think. They also had a service bulletin saying to blank them off as they weren't needed and affected oil pressure to the crankshaft as I understood it. So that's what I did.
Your video states in the title that your motor is from 1975. Wouldn't that make it a T160 motor, the final year for the Trident?
My Trident, a US model, is supposed to be a 1972, T150V; but the engine stamping shows it to be made in '71. Perhaps Triumph just put whatever engines they had on stock even if it didn't correspond to the production year...dunno really.
It sounds like yours does have the early type primary chain tensioner. The later ones have a large bolt that screws up from underneath. The engine I'm working on is a replacement and has no date stamp on it! I know it's late though, from the tappets etc. Triumph began making their engines the year before the model year, so a '74 model may have an engine built in '73, but they continued making the engines into the next year, so a '74 model can also have a '74 engine. Mine could therefore possibly be a '74 or '75 engine, built just before they began building the T160s - no real idea....