Re: Triumph 750 engine overhaul start to finish
Love your work GP.
Love your work GP.
Frank's Triumph 750 engine overhaul & resto-mod
- Thread starter grandpaul
- Start date
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Re: Triumph 750 engine overhaul start to finish
Amazing work.
I hope one day to be 1/100th the mechanical wizard GP is.
Amazing work.
I hope one day to be 1/100th the mechanical wizard GP is.
Re: Triumph 750 engine overhaul start to finish
I believe EVERYONE on this forum is capable of accomplishing pretty much everything I do and post here, all you need is the shop manual, parts book, a good machinist and this forum.
I believe EVERYONE on this forum is capable of accomplishing pretty much everything I do and post here, all you need is the shop manual, parts book, a good machinist and this forum.
Re: Triumph 750 engine overhaul start to finish
Looking good GP.
And thanks for the photos.
There, fixed it for you.
Looking good GP.
And thanks for the photos.There, fixed it for you.
Re: Triumph 750 engine overhaul start to finish
Now to the timing chest.
I installed the crankshaft pinion with beveled washer on the backside, set the crank at TDC, adjusted the cams to close alignment, then set the intermediate timing gear at the alignment marks and slipped it right in place. I sure wish they'd place the timing mark on the crank pinion on the actual gear tooth, instead of just below it; as you can see here, the mark is just covered by one of the retaining nut's flutes.
Next, refurbished the oil pump and installed it with a new gasket.
Now to the timing chest.
I installed the crankshaft pinion with beveled washer on the backside, set the crank at TDC, adjusted the cams to close alignment, then set the intermediate timing gear at the alignment marks and slipped it right in place. I sure wish they'd place the timing mark on the crank pinion on the actual gear tooth, instead of just below it; as you can see here, the mark is just covered by one of the retaining nut's flutes.
Next, refurbished the oil pump and installed it with a new gasket.
Re: Triumph 750 engine overhaul start to finish
Have you SEEN my "cheapskates garage" bits??? I am a "shady" tree mechanic on a good day (before the Guinness kicks in).
You area a master Sir :worthy: I can make racquet on a Stradivarius, but Yo-Yo Ma can truly make music.
Yo-Yo GrandPaul, rock on Man, rock on :rock:
Have you SEEN my "cheapskates garage" bits??? I am a "shady" tree mechanic on a good day (before the Guinness kicks in).
You area a master Sir :worthy: I can make racquet on a Stradivarius, but Yo-Yo Ma can truly make music.
Yo-Yo GrandPaul, rock on Man, rock on :rock:
Re: Triumph 750 engine overhaul start to finish
Installed the timing cover with 2 new oil seals, then set the timing tool to the static timing notch in the crank-
Then, installed the Sparx electronic ignition and static timed it. note the new patent plate, nice and neat.
Also notice I broke off TWO pillar bolts! Worse, one each, in each of the two available positions. Oy.
Installed the timing cover with 2 new oil seals, then set the timing tool to the static timing notch in the crank-
Then, installed the Sparx electronic ignition and static timed it. note the new patent plate, nice and neat.
Also notice I broke off TWO pillar bolts! Worse, one each, in each of the two available positions. Oy.
Re: Triumph 750 engine overhaul start to finish
Nice photo documentary and excellent work. Progress!!
Nice photo documentary and excellent work. Progress!!
Re: Triumph 750 engine overhaul start to finish
Great work and photos GP. A picture paints a thousand words.
Great work and photos GP. A picture paints a thousand words.
FrankDaTank
Member
Re: Triumph 750 engine overhaul start to finish
Thank you Paul for the update, I'm anxious to see it on the frame.
Thank you Paul for the update, I'm anxious to see it on the frame.
Re: Triumph 750 engine overhaul start to finish
Pancho sent me this shot of the chassis as it is progressing-
View attachment 12894
Pancho sent me this shot of the chassis as it is progressing-
View attachment 12894
Attachments
Re: Triumph 750 engine overhaul start to finish
On to the pistons and rings now. I love Hastings rings; when they are ordered for specific standard bores / overbores, they are always perfectly sized. No end gapping required.
Cylinders all clean, tappets properly lubed and re-inserted into their original locations-
Using a pair of ring compressors, the cylinders slid right on-
You can just see the o-ring slipped over the tappet heads to keep them from dropping into the case after pulling out the rags under the pistons.
On to the pistons and rings now. I love Hastings rings; when they are ordered for specific standard bores / overbores, they are always perfectly sized. No end gapping required.
Cylinders all clean, tappets properly lubed and re-inserted into their original locations-
Using a pair of ring compressors, the cylinders slid right on-
You can just see the o-ring slipped over the tappet heads to keep them from dropping into the case after pulling out the rags under the pistons.
Re: Triumph 750 engine overhaul start to finish
Cylinders nipped up and ready to move on to the head-
Pushrod tubes were a mess-
Clean and shiny pushrod tubes with new o-rings, ready to drop in-
Cylinders nipped up and ready to move on to the head-
Pushrod tubes were a mess-
Clean and shiny pushrod tubes with new o-rings, ready to drop in-
Re: Triumph 750 engine overhaul start to finish
New head gasket, head slipped in place and all studs set. Torqued down all head fasteners, then loosened off the two inner/center fasteners to allow the rockerboxes to be fitted-
New rockerbox gaskets, pushrods & rockerboxes in place, covers nipped up (valve adjustment later)-
New head gasket, head slipped in place and all studs set. Torqued down all head fasteners, then loosened off the two inner/center fasteners to allow the rockerboxes to be fitted-
New rockerbox gaskets, pushrods & rockerboxes in place, covers nipped up (valve adjustment later)-
Re: Triumph 750 engine overhaul start to finish
...and there we have it.
Total shop time 45 hours; about average for a Triumph big twin.
I still need to tap out the two broken ignition cover pillar bolts, and re-set the ignition static timing and it'll be ready to go into the frame. We'll see if we can manage to wrestle it in place without removing the rockerboxes...
...and there we have it.
Total shop time 45 hours; about average for a Triumph big twin.
I still need to tap out the two broken ignition cover pillar bolts, and re-set the ignition static timing and it'll be ready to go into the frame. We'll see if we can manage to wrestle it in place without removing the rockerboxes...
FrankDaTank
Member
Re: Triumph 750 engine overhaul start to finish
!!! looks Awesome cant wait.
!!! looks Awesome cant wait.
Re: Triumph 750 engine overhaul start to finish
That really is a piece of art. Great stuff GP.
Sent from my GT-I9300T using Tapatalk 2
That really is a piece of art. Great stuff GP.
Sent from my GT-I9300T using Tapatalk 2
Re: Triumph 750 engine overhaul start to finish
Great job; that is a beautiful engine.
Great job; that is a beautiful engine.
Re: Triumph 750 engine overhaul start to finish
That chassis is looking great, can hardly wait to see the chassis and engine together.
That chassis is looking great, can hardly wait to see the chassis and engine together.
Re: Triumph 750 engine overhaul start to finish
Tapped out the broken pillar bolt for the ignition cover-
Turns out the new pillar bolts are too long by about 1/8"-
Trimmed off the bolts with my nifty thrifty dual-mode belt/disc grinder (too easy)-
.
Tapped out the broken pillar bolt for the ignition cover-
Turns out the new pillar bolts are too long by about 1/8"-
Trimmed off the bolts with my nifty thrifty dual-mode belt/disc grinder (too easy)-
.
