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webber question


herculesinwyoming

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I rebuilt my hitachi carb and so far it is working just fine, but my question is if i get a new webber carb, how will it do in winter like cold starts, and i mean real cold like zero to 30 below zero? My truck has a block heater and a tank heater so i assume the hitachi doesnt like below zero starts

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I rebuilt my hitachi carb and so far it is working just fine, but my question is if i get a new webber carb, how will it do in winter like cold starts, and i mean real cold like zero to 30 below zero? My truck has a block heater and a tank heater so i assume the hitachi doesnt like below zero starts

 

 

The Hitachi should fire the engine below minus 30 if the block heater and or is operational

The Weber with the electric choke.... DGEV....is slightly better on cold starts.

Could be that all the emissions are removed.....no possible issues with vacuum loss.....etc.

Have both set ups.....very cold winters here.

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My other 720 has EFI with no air regulator.

Went out last winter....(truck was parked for the season)....was probably around -25C,

plugged the block heater in for about 5 min...flashed right up.

Although I had to keep my foot into it until it warmed up...

I was impressed :D

Oh....It was -39C here last year.

Apparently records will be broken again.......poop.

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Hitachi has no problems with sub-zero cold starts. It it is adjusted correctly (and the electric choke put on the winter setting) it will start and idle w/o your foot on the pedal even.

 

neither does the Weber... but the weber has a problem, generally they don't use heated air, and so are subject to carb icing (but some Weber air cleaners have heated air)

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Sealik - Does your carbed engine use the stock air cleaner? It seems the hot air tube from the exhaust manifold might be important in really cold weather, but maybe not. I know I iced up the Hitachi on my 200SX when running without this tube, but that was just above freezing in wet snow conditions, not the same as extreme cold and dry. I recall a thread here on Ratsun on how to cut out the bottom of a stock air cleaner to fit on a Webber. Might be a good idea for winter use, and use the typical open sided Webber air cleaner for summer.

 

I have 280/Maxima gear drive starters on my SX and 510. They seem to spin the engine faster, which could be a huge help in really cold. Also, electronic ignition, Matchbox or whatever, would give a hotter spark to a slow turning over engine. Spray carb cleaner is useful as a mild sort of starting fluid that shouldn't damage the engine like overdoing it with regular starting fluid may do.

 

Len

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Hitachi has no problems with sub-zero cold starts. It it is adjusted correctly (and the electric choke put on the winter setting) it will start and idle w/o your foot on the pedal even.

 

neither does the Weber... but the weber has a problem, generally they don't use heated air, and so are subject to carb icing (but some Weber air cleaners have heated air)

 

Never had any issues with carb icing with the Weber....but ..it's not very damp here.

Stock air cleaner somewhat helps..... ;)

 

 

P1030009.jpg

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Sealik - Does your carbed engine use the stock air cleaner? It seems the hot air tube from the exhaust manifold might be important in really cold weather, but maybe not. I know I iced up the Hitachi on my 200SX when running without this tube, but that was just above freezing in wet snow conditions, not the same as extreme cold and dry. I recall a thread here on Ratsun on how to cut out the bottom of a stock air cleaner to fit on a Webber. Might be a good idea for winter use, and use the typical open sided Webber air cleaner for summer.

 

I have 280/Maxima gear drive starters on my SX and 510. They seem to spin the engine faster, which could be a huge help in really cold. Also, electronic ignition, Matchbox or whatever, would give a hotter spark to a slow turning over engine. Spray carb cleaner is useful as a mild sort of starting fluid that shouldn't damage the engine like overdoing it with regular starting fluid may do.

 

Len

 

 

The tubes from the IM to air cleaner are plugged....(mostly for esthetics... ;) )....no issues.....but it is very dry and cold here.

 

P1010008-1.jpg

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One winter I couldn't get 1 of my trucks to start......WTF?

Got fuel, trucked plugged in, jumped from other battery, choke operational....got 'spark'...??????.....zippo

I figured it out after I pulled a plug to inspect.......hmmmmmmm......looked like OE....with a gap about twice the size of factory specs :blink:.

Cleaned them up....reset the gap.....good to go :D

 

You are correct......'hotter spark' (good plugs) helps :thumbup: in colder weather

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thanks for the ideas, i havnt ever started the truck in extreme cold, but the truck is getting close to being a daily driver, so the day may come soon.

 

how do i set the electric choke on the hitachi for winter?

 

 

Are they not preset from factory....? I'm assuming as long as they have 12 volts....should be fine.

No difference between summer and winter settings...(as there is none :lol:)... .????...can't be turned like the electric choke on a Weber.

Maybe someone else can clarify.

Disregard any wrong aforementioned info.... :D

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