Stag wont idle :: Triumph Torque

Triumph Parts Sign up for our Newsletter Rimmer Bros

Welcome, Guest.
Please login or register.
Stag wont idle
Forum Login
Login Name: Create a new account
Password:     Forgot password

Triumph Torque    Cars    Stag  ›  Stag wont idle
Users Browsing Forum
No Members and 5 Guests

Stag wont idle Print
1 Pages 1 Recommend Thread
tom horse
November 8, 2017, 6:06pm Report to Moderator


Posts: 44
Posts Per Day: 0.10
Hi,
i'm thinking about buying a stag with the original Triumph V8. It drives fine although it does have a couple of small leaks, as you'd expect
My main concern is that it wont tick over and anything less than about 12-1400 Rpm and being an auto it produces a loud clunk when engaging 'D' or reverse. Is this likely just going to be carbs/dizzy related or is there some Stag gremlin lurking than will jump out and empty my wallet two days after I buy it?

TH
Logged
Private Message
RobPearce
November 9, 2017, 10:25am Report to Moderator

Club Member
Posts: 1,781
Posts Per Day: 1.42
I've had that sort of thing caused by manifold gasket leaks, which are more of a pain on the V8 than any other Triumph engine. I can't immediately think of any other Stag-specific issue but I'm not really a Stag expert (when I had one, its engine was about the only trouble-free bit of the whole car).


Current fleet
1967 Vitesse 2L conv "Tessa"
1970 Spitfire Mk3 (project) "Toby"
1972 GT6 Mk3
Not enough time or space
Recently sold:
1972 2.5 PI estate "Harry" (gone to russell on here)
1973 Toledo 2-door "Spike" (gone to a club official)
Used to have:
1968 Vitesse 2L saloon
1980 Dolomite 1500
1977 Dolomite 1850
1980 Dolomite Sprint
1982 TR7 DHC Sprint
1975 2500S saloon
1971 Herald 13/60 Estate (with 1500 Spit engine)
1975 Stag
Logged
Private Message Reply: 1 - 13
tom horse
November 9, 2017, 4:00pm Report to Moderator


Posts: 44
Posts Per Day: 0.10
thanks for that, gaskets are fine, I just don't want to buy it if it has wallet emptying problem just around the corner
Logged
Private Message Reply: 2 - 13
StagNL
November 10, 2017, 3:40pm Report to Moderator


Posts: 1,386
Posts Per Day: 0.43
Idle speed could be just a fiddle with the settings of the idle screws or throttle linkage, but could equally be gaskets or other form of air leak.
The clunk on selecting reverse is common and usually accentuated when on choke (high idle....)  It can be softened sometimes by fiddling with the auto box settings.

Julian


Triumph Stag, Man. OD, RHD, Datsun 280ZX halfshafts and Subaru Legacy/Forrester R160 differential, Revolution 15" alloys. Fully rebuilt 2014.  
Triumph 2500TC, LHD, Autobox, PAS, Sunroof, Cosmic alloys.
CT Holland member.
Logged
Private Message Reply: 3 - 13
Pete Lewis
November 10, 2017, 6:46pm Report to Moderator

Tssc Herts and Beds A.O.
Club Member
Posts: 3,478
Posts Per Day: 0.79
Probably find the carb temperature compensators are open when should be closed
easy to remove  (2 screws on the side s)  and turn the small nut to close the plunger as these bypass the throttle plates
pete


1964 1600 Vitesse 6 Cactus and Black , now  sold
now have T2000   Mk2 saloon in French Blue/grey trim  been  restored without running since 1997
now has power steering ,poly bushed and Alfa 156 seats
location  Luton
Logged
Private Message Reply: 4 - 13
tom horse
November 11, 2017, 3:53pm Report to Moderator


Posts: 44
Posts Per Day: 0.10
Thanks Pete, that the kind of thing I was looking for. I'm aware of the usual leaks, out of sync carbs etc.  But it's been decades since I've even seen a stromberg. never mind one with temp compensators on it.
I'm going see it next week to give it a good going over and look for rust, signs of over heating  and all the usual checks, brakes,lights,etc, etc. i'll see if I can get a look at these temp compensators and i'll take some carb cleaner for gasket leak detection.
I don't want to fix it before I buy it but it would be good to know what the cause might be before I part with any cash.
Do you know of an updates, improvements I should look for? apart from the bigger radiator.
Logged
Private Message Reply: 5 - 13
RobPearce
November 13, 2017, 10:04am Report to Moderator

Club Member
Posts: 1,781
Posts Per Day: 1.42
Bigger radiator isn't really needed, just a really well cleaned-out cooling system. That said, an under-spec radiator core is a bad idea (and sometimes gets fitted if the rad's been repaired). I'm tempted to say that most "updates, improvements" should be regarded as potential badly bodged bits.


Current fleet
1967 Vitesse 2L conv "Tessa"
1970 Spitfire Mk3 (project) "Toby"
1972 GT6 Mk3
Not enough time or space
Recently sold:
1972 2.5 PI estate "Harry" (gone to russell on here)
1973 Toledo 2-door "Spike" (gone to a club official)
Used to have:
1968 Vitesse 2L saloon
1980 Dolomite 1500
1977 Dolomite 1850
1980 Dolomite Sprint
1982 TR7 DHC Sprint
1975 2500S saloon
1971 Herald 13/60 Estate (with 1500 Spit engine)
1975 Stag
Logged
Private Message Reply: 6 - 13
V Mad
November 15, 2017, 4:35pm Report to Moderator

Posts: 69
Posts Per Day: 0.03
Quoted from tom horse
Hi,
i'm thinking about buying a stag with the original Triumph V8. It drives fine although it does have a couple of small leaks, as you'd expect
My main concern is that it wont tick over and anything less than about 12-1400 Rpm and being an auto it produces a loud clunk when engaging 'D' or reverse. Is this likely just going to be carbs/dizzy related or is there some Stag gremlin lurking than will jump out and empty my wallet two days after I buy it?

TH

Not surprising you get a loud clunk at that engine speed, it's much too high.  When you say it won't idle at less, do you mean it doesn't respond to the idle speed screws being unscrewed and the butterflies closed?   Or do you mean that the engine dies when idle speed is reduced?  




www.stagweber.co.uk
Triumph Stag 1972 MOD; BlueBeige; Twin-choke Weber Conversion. Custom Header Tank. Fan Cowl, Blade fuse box.


Sunbeam Tiger 260 V8. 1965��


Logged
Private Message Reply: 7 - 13
tom horse
November 17, 2017, 11:15am Report to Moderator


Posts: 44
Posts Per Day: 0.10
It runs on the choke but as soon as you push the choke in it dies. I suspect it will be either worn carb spindles etc or a leaky inlet gasket. there's no problem when drivng,it accelerates with no hesitation and the kickdown on the gearbox works ( I assume it has the vacuum link to the engine)
It does have a few oil leaks etc but the body, floor etc is fine. Front discs are gubbed and there is play in a few bushes but overall the price was good for it's condition.
It should be arriving here next week so i can get started on it and hopefully find it's just a leaky gasket and not worn carbs. (If it is carbs it will probably end up with SU's instead of the strombergs)
Logged
Private Message Reply: 8 - 13
V Mad
November 17, 2017, 12:55pm Report to Moderator

Posts: 69
Posts Per Day: 0.03
Stroms may not need major surgery, there are many other Stromberg things that might be causing the problem if you can find what it is.  First quick check is that diaphragms are OK.
PS: SUs are not really an option unless you are skilled enough to undertake the work required.

Good luck with your purchase, I dont think the idling problem will be too serious.


www.stagweber.co.uk
Triumph Stag 1972 MOD; BlueBeige; Twin-choke Weber Conversion. Custom Header Tank. Fan Cowl, Blade fuse box.


Sunbeam Tiger 260 V8. 1965��


Logged
Private Message Reply: 9 - 13
tom horse
November 17, 2017, 10:26pm Report to Moderator


Posts: 44
Posts Per Day: 0.10
i spoke to Burlens today and they say putting HIF44's on should be fairly easy. It should just be a case of sorting out the linkage as the bolt pattern is the same as the strombergs. he also said that it should up the power a bit IF I can figure out what needles are best suited.
Anyway I'll wait for it to get here, sort out the front brakes and flush out the cooling system before looking at the idle problem.
Then I'll have to sort out the oil leaks including the rear crank seal.
Logged
Private Message Reply: 10 - 13
Nick Jones
November 24, 2017, 6:52pm Report to Moderator

Club Member
Posts: 10,004
Posts Per Day: 2.21
Performance wise there is no reason at all why SUs should give any more power than Strombergs and the latter have the significant advantage of having the right needles developed specifically for the engine by the engine manufacturer!  You'll not match that with SUs without a rolling road session with someone who knows SUs well.  SUs are taller too so don't know if they'll allow the bonnet to close......

I'd be looking at getting the Strombergs into top shape.  If you are overcome by the urge to change them then you should probably also consider Holley / Edelbrock etc.  

The RV8 is just begging for EFI IMO - There are few conversions out there already and very curious to know how Mr Weaver is getting on with his......

Nick


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
Logged
Private Message Reply: 11 - 13
tom horse
November 24, 2017, 10:48pm Report to Moderator


Posts: 44
Posts Per Day: 0.10
Well it finally arrived and with the idle speed where it should be.  i just need to plug up all the leaks from every possible source and probably some impossible ones. (seals, gaskets,etc)
Both rear brake cylinders are weeping, one piston in each front caliper is stuck. All the anti roll bar bushes are shot.
The shocks appear to be in good order except for the gaiters. the steering has a 'clunk' but the TRE's are ok ( it feels like it's coming from the column rather than the rack)
The drivers window switch has died since I last seen it and the rev counter dunt work. It has electronic ignition installed so it might have something to do with that.
The body is in fairly good nick with a couple of small rust blisters under the paint and it looks like someone polished the rear bumper with a brillo pad.
the fuel tank is new as is the pump.
Overall it's mainly just the rubber parts that have dried out from not being used and a few cosmetic problems.
Oh and the driver's seat needs rebuilding, the seat cover is split and the back foam has died.
Hopfully I'll get to spend some time underneath it tomrrow and make a start on it.
i reckon it wont need more than a grand plus a good paint job to get it sorted.
Now that the idle speed has sorted itself, I'll just balance and tune the strombergs for now.




Should I change the timing chains as I've no idea how old they are, even thou there isn't any rattles coming from them?
Same with the water pump, should I  rebuild that as I've no idea how old it is?  There isn't any oil in water or vis versa
and the temp gauge is reading normal so I've no reason to think it or the seal is about to fail.

TH
Logged
Private Message Reply: 12 - 13
nibby
November 25, 2017, 3:17pm Report to Moderator

Posts: 197
Posts Per Day: 0.04
Quoted from tom horse



Should I change the timing chains as I've no idea how old they are, even thou there isn't any rattles coming from them?
Same with the water pump, should I  rebuild that as I've no idea how old it is?  There isn't any oil in water or vis versa
and the temp gauge is reading normal so I've no reason to think it or the seal is about to fail.

TH


if there's no problem with the water pump leave well alone!!
You can look through where the oil filler cap is with a torch to see how far the tensioner is out to give you some idea of the chains condition.
Logged
Private Message Reply: 13 - 13
1 Pages 1 Recommend Thread
Print

Triumph Torque    Cars    Stag  ›  Stag wont idle

Thread Rating
There is currently no rating for this thread
 


Powered by E-Blah Forum Software 10.3.5 © 2001-2008

Latest Blogs-
Steve Weblin

17th January 2018 4:31pm gmt
Standard dealers in India - part 2
Theo Boonen

11th January 2018 9:10pm gmt
FHC resto nr. 60; Parts galvanising Part 2
more blogs...
Next Group Meetings-
Southern Area 2nd meeting Thursday 18th January 20:00
Worcestershire Wednesday 24th January 20:00
more local groups...
Upcoming Events-
Bedford Car Club Santa Rally
21st January 2018
CMC January Jaunt 12 Car Rally
26th January 2018
more events...
Wanted-
Dolomite Sprint Wanted. Must be manual OD, tax exempt. Looking for a tidy, usable car. Improvers considered, but not looking for a restoration project. Cash waiting, will travel. Contact Ade at ; bishop.ade@sky.c om

Herald Britax Weathershield Sun Roof, complete please. Bob Angell robertvangell1@ btinternet.com King’s Lynn Norfolk

Original Vitesse 2L Brake master cylinder, suitable for rebuild to convert my Herald.Pm Steve P on the forum or e mail prismsecsys@ btinternet.com

more adverts...
CLUB TRIUMPH the Club for all Triumphs
© Club Triumph Ltd MCMXCVI - MMXV