The Triumph Dolomite Club - Discussion Forum

Excellent news....

That has to be the solution....excess pressure defeating the seal. Result....

Should be a simple fix to whip off the stat cove and unblock the small hole....it is only about 1/8 inch diameter IIRC.

Jonners

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Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.

Removed the thermosat cover this morning, and yep the outlet for the expansion tank is blocked.

Upon further investigation the cause is some rust particles conducting an experiment to replicate
the process of sedimentary rock. They must have started decades ago and were very reluctant to
relocate, but after some agressive persuasion, and the promise of more space,
they have moved, to continuie their experiments in London's sewer system, where no doubt they will
be joined by much other detritus and like minded debris.

The cover will go back on tomorrow morning, weighing a few grams less, (every little helps

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NRW 581W Sprint


On the motorway no one can hear me sing!
Construed as a public service, self preservation in reality.

In future you can use my method to fill the last few cc's....

Filler top back on and fill expansion bottle above inlet ...squeeze bottom hose to expel air in to expansion tank and suck coolant back.

If you had tried this you would have detected the blockage...one for the common knowledge base.

Jonners

_________________
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.

Replacing the thermostat cover, and the bolt carb side just dropped into place,
no tightening or turning required.

Tried an M8 and a unf/unc stud, all three the same, straight in.

How this was tight and held on a near 400 mile trip is totally baffling.

Some chemical metal and a stud will go in tonight, or I may use the Weicon
aluminium repair stick.

And this is because the cooling system is literally sorted, definitly and infinitly cursed,
am I.

_________________
NRW 581W Sprint


On the motorway no one can hear me sing!
Construed as a public service, self preservation in reality.

Ordered qty 2 M9 x 30mm, they may just do the trick.

_________________
NRW 581W Sprint


On the motorway no one can hear me sing!
Construed as a public service, self preservation in reality.

Why not helicoil it?
Tony

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Membership 2014047

I was thinking of doing so, but I dont have the necessary tools to do the job right, not to mention another inlet manifold is at hand if the M9's don'twork out.

_________________
NRW 581W Sprint


On the motorway no one can hear me sing!
Construed as a public service, self preservation in reality.

I agree. A UNC helicoil with a stud is the way to fix this for all time.

Anything epoxy based won't have the strength for a permanent repair.

Serious bad luck going on here, but helicols will solve it for ever.

Jonners

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Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.

Mahesh a helicoil kit should come with a drill, tap, the inserts themselves and insertion tool. All you need in one box. An m9 bolt will need an m9 tap which is uncommon

Tony

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Membership 2014047

Not helicoil but wil do the same job
http://www.ebay.co.uk/itm/5-16-UNC-Heli ... Sw0vBUdcN1

Or like I did last time use M8 kit and it gives you more scope for available bolts

Tony

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Membership 2014047

Thanks guys, taken your advice, and have ordered a helicoil kit.
Lets see

_________________
NRW 581W Sprint


On the motorway no one can hear me sing!
Construed as a public service, self preservation in reality.

The kit arrived today, seemed straightforward and for once it was. Opted for M8 kit, and removed the tap every 1.5 turns to vacuum the shavings out, no problems.
I did clean up the surface.

Bolted the thermostat cover back, and using Jonners method of coolant refill, topped up the system.

Warmed engine up for about 40 minutes, not a drop came out anywhere

Temp gague fractionally goes over half until stat opens, then back to half mark.

I have a good feeling the cooling system is back to the way it should be, a good road test in traffic and open road will tell.

_________________
NRW 581W Sprint


On the motorway no one can hear me sing!
Construed as a public service, self preservation in reality.

Sorry for the hijack as I'm interested in above:

Jonners - want to share you method of filling the water system on a sprint.

Paul

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It's halfway up the previous page Paul!

Steve

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'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.

Had a look today as there is no voltage at the screenwash motor,
There is volage coming through the end pins, so I shorted them only to find there is voltage at the motor, which was not present before

New screenwash motor it is then.

_________________
NRW 581W Sprint


On the motorway no one can hear me sing!
Construed as a public service, self preservation in reality.