Extractors

[S3ute]

Hello again from Sherwood.

I have a set of extractors that I was planning to fit to my 2.25 litre petrol four cylinder.

During a conversation with an American mechanic last year I mentioned this intention. His advice was to expect issues with carburettor icing and possible tuning problems. This was largely due to the removal of the heat exchange between the inlet and exhaust manifolds. I mentioned that, to my knowledge, fitting extractors was common enough here and that I wasn’t aware of too many problems.

He re-raised this issue again recently and I thought that I should throw the question out there. Any issues with fitting extractors to Land Rover engines hereabouts?

Hereabouts is largely South East Qld but could include short forays to the New England and possibly Snowy Mountains.

Cheers,

Neil

[101RRS]

You were given rubbish advice.

My series 3 engine blew up in 1989 and I rebuilt it with extractors, recon carb and recon dizzy - was in Gosford - no issues - vehicles was my everyday driver.

In March 1990 moved to Canberra with the Series 3 and still my everyday driver - that was a particularly cold winter (no heater in my Series 3) with morning temps down to about -8 and quite a few snow drops that winter - had a few issues with wheel bearings and axles but the engine was still running fine in all conditions. Sold in about 94 and it was still running around Canberra when I last saw it at the end of 2012 - again no engine related issues.

When I sold it I bought a Subaru which I put a weber carb on and it did suffer carb icing (and icing around the sports air cleaner) - mainly at higher revs but the Landrover never did.

So you will not have an issue and I consider it a worthwhile mod for these engines.

Garry

[donh54]

You took advice from an American mechanic about an Aussie based Landrover? Hope he is a LR specialist.
Nothing against American mechanics, but their exposure to Landrovers of any description, particularly pre-Disco 2, ones, would be sketchy at best.
I live in SEQld too, (Warwick, actually, where it can get rather chilly) and haven't had any problems with eliminating heat risers in more than 30 years.
Actually, in warmer climates, heat risers cause a loss of power (small, but the old 2.25 doesn't have a lot to begin with.)

[S3ute]

Hello again from Sherwood.

Thanks for the responses - pretty much what I thought would be the case. I hadn’t been aware of anyone encountering icing or tuning issues.

Re the mechanic - he has actually worked on Land Rovers and other British makes for years and has recognised expertise over there with the older trucks. Surprisingly, there are a good many people like that in the USA and Canada where the trucks once sold well from the fifties through to late 70’s when Leyland threw the North American market away. However, I was pretty sure that the warning that I was getting was in the context of the climate in the New England region which gets pretty cold in winter.

Anyway, before I (politely) rebuffed the advice I thought it best to throw out the question to a wider local audience.

Cheers,

Neil

[rick130]

And just to confirm even more!
My uncle had a Series 3 that he fitted Perry headers and a 2" straight through system to.
He lived at Mulgoa, west of Sydney that had frosts in winter but not stupidly cold, and we went to places like Araluen in winter which does get cold and he never had icing or tuning issues either.

A decent exhaust with a retune helps the old 2.25 quite a bit