Thread: Series IIA Pulling Power

Originally Posted by HarlingtonStraker

thanks for all the replys guys / gals.

1. Vapour lock does seem to be the issue here, although some have said that maybe the carby was dirty and blocking up a bit under full throttle.

2. I must say this forum is a valuable resource of advice and information.
thanks again.

3. My carby is not standard. it is a webber replacement. How do these go on the inclines ?

4. My fuel pump is electric, but I now have an original mechanical one which I shall fit this weekend, I think I will leave the electric one there as a backup.

5. Will I need a special one with the eight bladed military fan ?

6. I have since found and fitted an expansion bottle to the radiator, prior to the hill journey.

.

1. If it was dirt in the carbouretter, it should show up as soon as you use full throttle, not gradually fade out, although a partial blockage could lead to a weaker mixture and running hot. Not alikely problem, but cleaning it won't hurt!

2. Thanks on behalf of all of us.

3. Unless I am mistaken this carburetter was fitted to late S3, and they would not have fitted one that was fussy about slopes - and in any case it is very unlikely that any modern carburetter would worry about any hill on a public road.

4. The electric pump may or may not be an issue, depending on what model it is and how it was installed. The original pump is usually quite trouble free (although they are not keen on pumping dirt) - I have replaced the diaphragm in mine once in about fifteen years, and this is only the second one I have ever had to fit.

5. The missing shroud is almost certainly part of the problem! It is almost impossible to get a full shroud on with the military fan installed, and all the ones I have seen have the bottom of the shroud cut away. Otherwise it is the standard one. Should be able to get one from anyone wrecking a Series 2/2a/3 Landrover, but the late S3 had a plastic one, and I am not sure it is fully interchangeable. I would not even try to get one new. I have a spare, but am a bit far away - maybe someone on here a bit closer has a spare one.

6. All the expansion bottle does is save the coolant that expands when hot from being lost. Should not make any difference to the cooling except that it makes it less likely to run short on coolant.

Originally Posted by HarlingtonStraker

thanks for all the replys guys / gals.

My carby is not standard. it is a webber replacement. How do these go on the inclines ?

My fuel pump is electric, but I now have an original mechanical one which I shall fit this weekend, I think I will leave the electric one there as a backup.

In reply to one question, No I do not seem to have a radiator shroud fitted.

This has bothered me since I got the Landy but have not found one yet.

Will I need a special one with the eight bladed military fan ?

Now anybody got any hints to locate that shroud?

cheers to all

HS

Yes I must Agree, they are pretty tough Andy.

I had a single throat weber on my 2.25 and I used to do a lot of rock climbing with it, just outside of midland, used to perform great.

Some other items I found made small improvements to the little 2.25 (I used to say 2 1/4 lt many years ago).

Remove the great hunk of steel fan blade because it does suck off a couple of hp and fit a four bladed plastic one (from memory this was of an early datsun 180B, just re-drill the mounting holes.

I removed the mechanical pump altogether and replaced it with an aftermarket electric one near the tank. I'd also replace rubber fuel hose with some good quality hose thats insulated.

Fitted an aftermarket “electronic ignition” (well basically a capacitor discharge).

Extractors and a 2" stainless exhaust (ok, no need to get carried away with stainless, but it did sound good).

Although it was also a rebuilt motor, it did run dam well and I think it would have pulled an overdrive quite well (keep in mind it was a SWB ).

Was always my favorite Landie I owned, dam I want it back, I'm sure it's still alive, I sold it to a guy down Safety Bay/Rockingham, bright yellow, SWB Series 3, twin alloy tanks.... *sign*

Fan shroud, hunt round wreckers or tips out in the bush, Marble Bar tip many years ago was a gold mine for Land Rover parts

Best regards
DarrenR

IME the webber is MORE prone to vapour lock than othere carbies.

Originally Posted by isuzurover

IME the webber is MORE prone to vapour lock than othere carbies.

Interesting! vapour lock usually occurs on the suction side of the pump (hence the suggestion of putting an electric pump at the tank), and so should not matter what carburetter you have. However, actual boiling of the fuel in the bowl is likely to be very dependent on the type of carburetter, and a secondary effect could be if the mixture is weaker (and the Weber is supposed to give a little better economy = weaker mixture) it will lead to hotter running which will encourage vapour lock.

John