tr7triumph.com

Hi All
Was premature when I said now sorted WRONG.
1980 TR7 2.0L Electronic ignition twin su's standard air filter with mechanical pump.
When car engine is warm its running great, good acceleration good tick over.
Problem is cold starting, Tries to start on two cylinders does start on two, then eventually comes in on four, Using slight choke revs up to approx. 2000 rpm on choke, I set the chokes for carbs at weekend which I thought had cured the problem, started on four on two occasions when cold, again checked today that chokes are pulling on even, They seem to be, Any suggestions what to try next please.
Regards
Gareth.

G.P.Albrighton

Clean the carburettors to start with as it is easy [:)].
Look for dirt in the float bowls that may cause blockages.
Also check that the carburettors pistons move freely.

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1981 TR7 FHC Sprint (better known as 't Kreng)</font id="blue">
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The fuel is draining away (or evaporating) - so it starts on 2 as new fuel comes through from the pump, and then the other 2 pick up. Don't worry about it!

Check everything is tight, to make sure you don't have an vacuum leak which takes up as everything warms up.

Prepare the car before cold starting, & repeat your carb suction test immediately after starting, when it is still running on 2.

After the car has stood overnight, pull the tops off the float bowls, [don't loose the spring washers on the 3 screws each], & check the actual fuel in there.

If one is down, fix it. It can only lose fuel through the gland where the jet tube meets the bowl.

If the levels are OK, check the valve clearances. If a couple are riding it could cause funny problems, which clear up as the thing warms, & clearances increase.

As a desperation check, warm the engine. Take the fuel hoses off the carbs, & direct each one into a separate secure catcher bottle. Fire up the engine, on the contents of the float bowls, & check the amount of fuel coming out of each.

Hopefully someone can suggest an electrical area to check.

Hasbeen

Hasbeen, was that a hint for little ol' me to toss in the spark plug wires may have a break in the line impeding the electron flow when the engine is cold?

Was that what you're getting at?

Mildred Hargis

No it wasn't Mildred, but a good thought anyway.

With my vast knowledge of things electrical in automobiles, [xx(], I don't do electrical advice. If I start that, I'll probably destroy a whole generation's enthusiasm.

Hasbeen