The Triumph Dolomite Club - Discussion Forum

I am plumbing a sprint engine. Fitted a Golf rad and got that sorted, but now have to connect up the heater/manifold etc connections/hoses.
From memory (not with the car at the moment) there are
2 heater connections, one higher than the other
An outlet 1/2" from the manifold
A hose tail 5/8 from the water pump housing.
I know there is an H piece, presumably for the bypass. But are there any other connections? And what goes where? I like a heater that works, so want to get it right.

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Clive Senior
Brighton

From inlet manifold through H piece to upper pipe through bulkhead, then from lower bulkhead pipe thru H piece to water pump hosetail which, IIRC is aso 1/2". The H piece is omnidirectional, doesn't matter how you fit it.

This is also the direction of water flow through the heater.

HTH, 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.

Just to add to Steve’s reply if I may,
you can improve the heater output by taking the heater supply
from the back of the cylinder head and also by using an 88 degree thermostat.

I have actually fitted a VW heater matrix into a Dolomite heater box
which is a bigger capacity and has larger stubs. Alas I don’t know how well this
actually works as I am yet to get my Sprint on the road.

Thanks
Ian

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Thank you both.
I can get on with that bit next (when I get time!)

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Clive Senior
Brighton

Can you remember which VW model you got the heater matrix from.

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2009 Mini Clubman Cooper S Daily Driver.
1980 Dolomite Sprint with a touch of BLTS
Balanced Lightened and Tweaked 13B Rotary and SuperCharged.
Back in my possession 22 September 2019.
Rebuilding the Sprint time taken so far, 111Hrs@15/12/2020
212Hrs @31/12/2021
352 @ 28/11/2022
455Hrs @ 20/10/2023
480Hrs @ 14/03/2024
This is time taken at the Sprint not necessary time worked.

Working on a ratio of just 7Hrs a day not including driving to the Sprint.
That equals to 68 days that doesn’t include weekends.
Member TDC no 0471

Project 13B Sprint now back on.

Here’s the original post Phil. I can’t see the images any more…

https://forum.triumphdolomite.co.uk/vie ... 9&start=30