The Triumph Dolomite Club - Discussion Forum

The pressure is predominately controlled by the spring, the stroke controls the volume or flow.

Seemingly, as with so many classic car repro parts, they can't get the spring rate correct - witness the ongoing issues with the oil pressure relief valve spring in the County oil pump on the slant 4 and ...

I might be interested in a pair but I don't know what state my ones are in yet, I only know the base has had it - it is getting quite lumpy to sit on/in. If the price was reasonable then I would probably have a pair in order to do the whole job properly.

Thanks for your efforts on this, much ...

I might be wrong but I think the screen wash additive is a non starter. Screen wash by it's very nature cleans and gets rid of or "cuts through" oil, dirt and grime. So any metal surface it touches will be left clean and oil free and therefore exposed to the moisture and air and hence possible ...

My '75 Sprint doesn't look like it was Ziebated - no tell tale plugs anywhere. It has had some welding in the past but not a massive amount. Not sure of it's history but I'm pretty sure it has "gone round the clock" - it now shows 17,000 miles and the dash and dash loom have the correct date showing ...

it was on the rear two studs on my Stag block when I rebuilt it, As the Sprint and 1850 engines have the same arrangement I would expect to see the same issue there.

Also worth pointing out that the angled studs can distort the side of the hole as they exit the head face if the head has been ...

Look like they could be stone guards to fit to the wing/arch behind the wheels to protect against stone chips.

Ah didn't appreciate the ARP set replaced the bolts as well. In that case if the studs can take the strain so to speak then all it should do is squash the gasket a bit more, though I would be a little concerned about distortion of the block face around the top of the threads. It does happen with ...

So long as the nuts fit on the end of the stud with the slot and the thread on the other end fits the thread in the block there's no problem.


BUT .... if the nut thread was originally UNC (coarse pitch) and the ARP ones are UNF (Fine pitch) then what torque figure do you use?? Everything else ...

new to this wrote: ↑Tue Jul 23, 2024 7:29 pm Are TR7 Big end and Main End Bolts the same as Sprint Bolts, ARP bolts only sell them for TR7

Thanks Dave

Same part numbers so I would assume so.

Robsport lists 159463, the picture on the website looks correct, but I would phone and check with them before ordering:

https://robsport.co.uk/online-shop/shop ... urn-spring

Mine had a Numax 038 fitted when I got it, no idea how long it had been in there for but it is still OK 5 years later.

£54.80 delivered next day from Tayna Batteries

https://www.tayna.co.uk/car-batteries/numax/038/

Yes, agree with Steve. Start afresh get new jets and needles. Also check the carbs over as they have obviously been bodged in the past.

OK I am assuming the orange band is on the one with the Red jet head which should be on the front carb (I think!) which is correct. I also assume the one with the green band has the black head which makes it a AUD9141 which is a 0.090" jet, hence why it is weak, that is wrong! If that is the case ...

Short answer is yes. The only difference is one is for the left hand carb and on is for the right hand carb.

The fact that the jet bases are different colours (one red and one black) shows the jets are different, i.e not a pair, (not just LH and RH). But it doesn't indicate in which way.

There ...

According to the SU data book it was HS2's up to 1973 then 1974 onwards it was HS4's