[TR] TR6 will not start when hot

Paul Tegler ptegler at verizon.net
Wed Jul 3 13:37:18 MDT 2019


been here..done this.... (bhdt?? vs btdt)?? everyone calls it
heat soak...not sure that's the right term.

It's a simple issue...and can be tested to see it it applies to
your situation. when HOT and you shut down.... the hot fuel
in in the bowls want to evaporate, expanding and pushes gas
up and out of the jets into the intake. In essence...
your engine floods.

Pop off an air filter...lift a piston and open the throttle...stuff a
1/4" fuel line through and blow fresh air into the manifold to
evap some of the raw fuel and fumes. odds are it'll start right up.

How I got around it was an electric fuel pump.... with a switch!
As I'd pull into a parking lot as an example, I'd reach over and kill
the fuel pump. The last 1-2 minutes of the engine running would
lower the level of the fuel in the float bowls.???? I've never had
the problem since.

ymmv

ptegler


On 7/3/2019 3:08 PM, Jeff Scarbrough wrote:
> I have a similar problem.  If I try to crank the car after sitting a
> few minutes, it's hard to start.  If it sits longer, it will start
> without a problem.
>
> I attribute it to heat soaking of the carbs and fuel line...and I also
> have a heat shield.  I haven't looked into the routing of the fuel
> line yet - my solution is to just keep driving and never stop...
>
> Jeff Scarbrough
> Corrosion Acres, Ga.
>
> On Wed, Jul 3, 2019 at 8:51 AM robert rudolphi <robertrudolphi at yahoo.com> wrote:
>> Hello all,
>>
>> I am having trouble getting my TR6 to start when hot. It always fires right up when cold but after a drive it just cranks and cranks but will not start. I usually keep the throttle wide open when trying to start but lately that does not seem to make a difference. I usually have a strong smell of gas after cranking for a while. I have installed one of the carb heat shields but also no help. I assume it has to do with the carbs getting to hot above the exhaust manifolds, but I have spoken to others and they do not have this problem. This has been going on for years and would love any input to possible fixes.
>>
>> Thank you,
>>
>> Robert Rudolphi
>> 74 TR6
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-- 
Paul Tegler
ptegler at verizon.net  www.teglerizer.com



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