I learn today that my fuel gauge can't be trusted!
Just put 48 litres of V Power in her, the gauge still showed nearly 1/4 full!! Oh and I was dozing whilst filling up, click splash, all down my best Tesco shorts!
Anyway, I know some of you guys don't use Facebook so a quick update based on a question I posted there some of the info may be useful to others.
Hmmm weird squeezing sound, sounds like the belt but it's not, that's new and adjusted correctly. Fan pully bearing gone?
Bruce Jones - One of my 1850's made a similar racket, which was a leak on the intake manifold, just saying
Jeroen Rothman - Or alternator.
Γιάννης Κούκος - Μaybe the alternator
Bruce Jones - Take the belt off, see if it shuts up?
James Shephard - Thanks chaps will remove belt and report back...
Alan Crome - Alternator bearing.
Rob Amey - Try another belt may be after market and slightly oversize not fitting in the groove correctly
Gavan P Holly - A mouse on LSD??
James Shephard - School run done! Rains stopped, well stopping! I'll whip the belt off in a bit and see what happens.
James Shephard - Seems that Bruce Jones is right, inlet leak. Looks like the carbs aren't tight enough on the inlet manifold.
James Shephard - Looks like the springs maybe tired.
James Shephard - Pulled a couple of gaskets from a Payen gasket set and they are about 0.5mm thicker.
Alun Nicholas - Yes, SU's!
James Shephard - Alun Nicholas don't dis the 'bergs! Embrace the 'bergs, be at one with the 'bergs!!!
Bruce Jones - Hey, I'm good sometimes, aren't I?
Bruce Jones - Can you not just tighten it up slightly, or add 1 more plain washer?
James Shephard - I pulled the springs apart a bit then reassembled. Sound has stopped. I am just wondering if a little air leak was causing the lack of top end power
Bruce Jones - Possibly....
James Shephard - I think the springs are soft, will put another washer under until I can find some replacements
Alun Nicholas -
http://www.ebay.co.uk/.../TRIUMPH-TR7-o ... 2534103078...
TRIUMPH TR7 or Dolomite 1850 HS6 SU Carburetors and manifold may fit others |…
James Shephard - MINE!! Yes, I saw them, am watching. I have a SU manifold in the garage.
Bruce Jones - Are there any differences on manifolds, between early and late cars? Just thinking.
Bruce Jones - James, aren't they spring washers, is tighten till flattened?
James Shephard - They are double coil lock washers, it looks like they retain some spring to them, you can only tighten the nuts up so much.
Bruce Jones - What, because you run out of thread, or because they are tight? Seem to recall Frank hasn't got these
James Shephard - You run out of thread.
James Shephard - Where's Jeroen? I would have expected some sort of detailed explanation on why the lock washers are there?
Tom Overton - I'm no Jeroen, but Weber carbs often use those spring washers under nyloc nuts. They have a thick rubber o ring under them to make the vacuum seal rather than a gasket though.
I think the reason for that or the rubber mounts used by Triumph for the SU...See More
James Shephard - Ah good, that's exactly what I've done. Not taken it for a run yet but they do look more secure without the rubbers being crushed.
James Shephard - Ok so it's 100% better but the mixture now is way out. Now has a decent induction note
Bruce Jones - Running rich?
James Shephard - Probably, I think that seal was letting in air. Idle is so darn smooth now
Bruce Jones - Can't fault that!
Bruce Jones - Like I said, last 5% is always the most difficult. Let's face it, less than 4 months ago, this car hadn't moved for what, 20 years? It's now in use, looking good, and being refined
James Shephard - Doing the school run now!
Bruce Jones - Getting strange looks from other parents?
James Shephard - More like p155 off looks because I nicked the last parking space!
Robert FE Jones - I think I have a pair of weber 40s if you want a change from bergs....
James Shephard - So a quick update again, this seems to have solved a whole raft of running issues, mixture was way to rich. Had to back it off a bit in Waitrose car park!
Carbs now need resetting, balancing and retuning. Thanks to everyone who has contributed to this thread, especially BBruce Jonesand TTom Overton