[TR 5 Electrics]

You might find this useful as a ground/earth checklist... 

https://www.ovtc.net/uploads/9/5/1/6/9516577/tr6_ground_points_hr.pdf

[TR5 at Auction]

TRTom, thanks for the info.  

Jim

[TR5 at Auction]

digging into the details of the jasmine yellow TR5 sold for 50+ UK Pounds there appear a filter I didn't recognize in the engine bay.  see the image below, (the url is -https://www.iconicauctioneers.com/1969-triumph-tr5-rec12897-1-nec-1123).   I'm wondering if the filter is part of an aftermarket crankcase breather system.  

[Bronze valve guides]

somewhat tangential comment - I recently replaced bronze value guides with steel guides on my TR5.  Bronze sounded like a great idea when I had the engine rebuilt but after ~10k miles I discovered a couple of the guides had moved in the head.  Differing expansion coefficient is the likely cause and, while I understand the risk of this happening can be limited by knurling the outer surface of the valve guide, I've decided that I'll stick with steel in the future.   To your question I didn't experience any sticking issues.

Jim

[TR6 block, piston and head question]

As you pull together you plan to assemble the engine its worth knowing what the cylinder head combustion chamber volumes are.  That will influence piston clearance, compression ratio etc.  There are a few work sheets/spreadsheets around to help pull all the calculations together.  

[S.A.H. built cylinder heads painted Duck Egg Blue ?]

Ian, interesting stuff re the SAH engine configs.   At some point I'll need to tear down my engine and check it out.  

Re colour my TR250 block is painted green, (similar to leyland engines - austins, minis etc - could be mowog green), and the head is painted a pale blue.  The engine number differs from the original but its in the same range, (replacement engine number CC5844 original (BMH cert) was CC5677).  And the engine hasn't been apart for many decades.

Jim

[S.A.H. built cylinder heads painted Duck Egg Blue ?]

I'm not finding a lot of information.  Here's an old team.net post http://www.team.net/archive/triumphs/1999-06/msg00858.html 

and an old classic car description from 20 years ago.. https://www.oldclassiccar.co.uk/sah-triumphtune.htm

Jim

 

[S.A.H. built cylinder heads painted Duck Egg Blue ?]

Hi.

All good info.  At some point I'll need to take the head off and check it out to see how, or if, the head was modified.  From the numbers stamped on the head it appears to be a standard TR250 head.  At the moment it's a tired engine that leaks and burns oil.  But the head colour had puzzled me up to now and the potential SAH history adds a little more character.

Thanks for sharing.

Jim

 

[S.A.H. built cylinder heads painted Duck Egg Blue ?]

Gents, very interested to know where the SAH head markings can be found for a 6 cylinder head.    I have a pale blue head on a TR250 and its mounted on a block that's painted green, rather than black.    So I'd appreciate any info on head SAH stampings or tag locations.

Jim

[TR5/6 glove box light]

Very surprised to hear that the glovebox lights weren't fitted as standard.  My 5 came off the production line on the last day of production and is fitted with a glove box light.  It might have been an after market fitment but I had assumed they all had them.  My TR250 doesn't have one fitted, it has a mid-production run serial number.

 

Jim

[TR6 PI Manifold Centre Inlet]

Bahman, results from the test look good.  I'd recommend putting a few miles on it and see what issues surface.  

I wouldn't try and clean out the intake butterfly crud, you'll likely compromise the air seal that the residue is providing.  

Enjoy.

[Heritage Certificates - Triumph Bonneville]

Roger, thanks.  I'll check out the national motorcycle museum.

Jim

[Heritage Certificates - Triumph Bonneville]

Based on my research I suspect the answer is no but is there a source of heritage certificates for Triumph motorcycles?  I'm thinking specifically of a 1979 Bonneville.

Thanks for the advice.

[Pinion Roller Bearing advice]

something of an interference fit but I managed to prise it out.  

 

[Pinion Roller Bearing advice]

Hello all.  Is it possible to remove the roller bearing cone, cage and rollers from the diff head once the drive flange is removed?  I suspect not but I thought I'd ask.

Thx.

 

[Cylinder head work specification.]

15+ years ago I had an engine rebuild and decided to 'improve' the head with new bronze valve guides.  Well I just had the head rebuilt, with stock guides, because 2 or 3 of the bronze alloy guides had loosened and moved.  No evidence that they's seized due to too little clearance, likely it happened because of differing thermal expansion coefficients over ~15 years.    Bottom line - I'd stick with stock guides unless there's a pressing reason to change.

Jim

[Help on Fuel Metering Unit Timing]

TRier, where are you located?

Lots of good advice and expertise above.  

Having read the comments and given the OK pressure (108) at the MU I'm left wondering whether the issue is a partial blockage of the fuel flow from PRV to MU core.  3 causes come to mind:

1. A partial blockage of the fuel line between the PRV and MU.  Of has that line been cleaned out or replaced?
2. Has the internal condition of the flexible fuel line entering the MU deteriorated and so, when fuel attempts to flow, the line limits flow?
3. The MU likely has the small fuel filter where the primary fuel line entering the MU.  Another possible point of flow blockage.

Jim

[PI Camshaft]

JohnC did you ever fit that 6:3:1 exhaust and reassess the power deliver of your motor?  I recall reading a series of interesting posts of yours some years ago where you experimented with stock and TT1200(?) manifolds.  

Jim

 

[PI Camshaft]

John, does your newman cam have a serial number or references embossed or engraved on the end?  Newman offered a close to stock replacement for the TR5 PI cam and the end markings are referenced in the photo below.  

Jim

[Valve Guide Length]

I'd welcome advice on valve guides and length.  

I see that Rimmer offers two lengths of valve guides - 2.0625 and 2.25 inch.  In what circumstances would the different lengths be used?   

I currently have bronze guides and I was stunned to find one of the guides was relatively loose.  I suspect I should replace all guides with steel and go back to a stock config.  

Thanks for the advice.

[TR6 Flat Top Pistons?]

I noticed that the TR6 - https://www.carandclassic.co.uk/car/C1246401 - has some form of aluminium or grey plastic shroud around the distributor cap.  Was that a common factory or aftermarket fitment?  Don't recall seeing one before, (could be my failing memory...!).

Jim

[Shock Absorber]

Any thoughts on how old these shocks might be?  Recal-R 2548 shocks.  Needless to say they're no longer on the vehicle.

[County Camshaft Reliability]

Peter, I called them a few minutes ago.  All they could tell me is that its likely not reground, its probably chilled iron.   They don't manufacturing the product, its supplied from a variety of source countries...

Jim

[County Camshaft Reliability]

Thanks for all the feedback.

Jim

 

[County Camshaft Reliability]

Folks, I have a CP camshaft with a TR5/early TR6 profile and its manufactured by County.  I bought the cam several years ago but I haven't installed it yet.  Before I do I'd like to hear from members who might have had direct experience running this County cam.   Bottom line - I don't want to install a poor quality cam...

The identifying markings on the end face of the cam is "TRI6/150BHP" and the lobe profiles match my old TR5 cam.

Feedback appreciated.

Jim