Featured 1977 T140 Rebuild

Jim
My advice would be to get new barrels complete with new pistons and rings. It saves all the fannying around trying to find an engineering firm close enough, not too busy (nearest here has about a month waiting list) and know how to do it properly. My last barrels came from Brit Bits - great service, pretty good casting and fit was perfect.
I've got one of those Bonny engines with a single carb head, it was the thing to do in days gone by - easier to tune and less fuel apparently. I like the twin carbs though so have converted back to two carbs using ported webco castings. The carbs stick out more as the angle is greater - looks a bit weird but it's on the chop so that's ok then.

 

Hi Jim,
I'm sure when @darkman see's this he'll give you some good advice as he's the classic Triumph genius on here.

 

There are two options Jim, re bore and new pistons and rings if you have a trusted engineer, £200.00 ish or New barrels pistons and rings for £400.00 inc from L F Harris

 

L F Harris are the best bet at 80.00 plus vat and they do a good range of sizes

 

She looks a bit beaten up yes, but some love and care, you will get her there keep the updated coming, nice to see how it’s coming along

 

Welcome to the forum

 

Forgot to add @Jim Hargreaves darkman has done a few restorations on here take a look back over his old posts and be amazed

 

Hi and welcome....

 

If you want to go with the webco castings to get those twin carbs back on (rather than replacing the head) - here's what they look like. A bit sticky outie.

 

There is a specific puller for them if you look online i think you can still buy them for around £70.00. The other option is to heat the inner race quickly and use wedges.

 

Jim
yep, as darkman says heat is your only option if no puller is available. Watch Todd of Lowbrow Customs doing the heat thing here - it's about 33 minutes into the video

well worth keeping the whole set of videos from Todd always good to reference back to them.