Poor starting.

Engine Oily Bits, Ignition, Fuelling, Cooling, Exhaust, etc.
Message
Author
User avatar
1973Blue2000
Newbie
Newbie
Posts:18
Joined:Thu Jan 01, 1970 12:33 am
Location:United Kingdom
Contact:

#1 Post by 1973Blue2000 » Sat Mar 19, 2005 5:24 pm

<div>My 2000 has been running perfectly for
many years, but has always had a bit of a struggle starting from cold. I
have tried the choke in many different positions, along with varying
degrees of throttle, but it always takes two or three 5 second bursts
on the starter before she jumps into life. <br>
<br>
This is a ballested type set up, and I was wondering if perhaps the
starter solenoid wasn\'t working properly by not giving the coil 12v
when I am cranking it over? When she has been running she is perfect,
short blast on the key, and away she goes.<br>
<br>
Perhaps I am just being picky?<br>
What are the thoughts of other members?<br>

</div>
<edited><editID>1973Blue2000</editID><editDate>38430.5974537037</editDate></edited>

sahtuning2000
Senior Member
Senior Member
Posts:484
Joined:Thu Apr 08, 2004 7:46 pm
Location:United Kingdom

#2 Post by sahtuning2000 » Sat Mar 19, 2005 11:57 pm

check the fuel pump is working correctly,would explain poor morning/cold start,taking longer to pump the fuel up,but hot the fuel is already in the carbs/pump,just an idea??

User avatar
1973Blue2000
Newbie
Newbie
Posts:18
Joined:Thu Jan 01, 1970 12:33 am
Location:United Kingdom
Contact:

#3 Post by 1973Blue2000 » Sun Mar 20, 2005 1:11 am

[QUOTE=sahtuning2000]check the fuel pump is working correctly,would
explain poor morning/cold start,taking longer to pump the fuel up,but
hot the fuel is already in the carbs/pump,just an idea??[/QUOTE]<br>
<br>
Shall try pumping by hand tomorrow morning and will let you know !!!<br>

sahtuning2000
Senior Member
Senior Member
Posts:484
Joined:Thu Apr 08, 2004 7:46 pm
Location:United Kingdom

#4 Post by sahtuning2000 » Sun Mar 20, 2005 1:14 am

they do go empty but not over night,if you find the bowl is empty(the carbs won,t over night)then i think you have a pump problem,see if the engine oil smells of petrol???

User avatar
Alec
Senior Member
Senior Member
Posts:2511
Joined:Sat Feb 07, 2004 7:23 pm
Location:Oswestry, Shropshire

#5 Post by Alec » Sun Mar 20, 2005 3:36 am

Hello SAHT, <br>
certainly S.U. HS carburettors do suffer from leaks from the bottom of
the float chamber so need filling after a long stop, easy with an
electric pump, just wait until it stops pumping then start. I guess you
have Zenith and maybe they have a similar problem as the float chamber
has a seal at the base of the jet and a similar situation may be
possible. <br>
(it\'s a while since I had Zeniths) Or possibly your choke isn\'t operating correctly?<br>
To check your ballast, disconnect the 12v ignition supply (white wire)
if your engine starts without it then the ballast is working. (It won\'t
run until you replace the white wire, but it should fire up without
it)(By the way, you don\'t get 12v when cranking more like 8 to 10 which
the ballast drops the normal 12 v when running, i.e. the coil is
actually an 8 or 9 volt coil)<br>
<br>
Alec<br>

<edited><editID>Alec</editID><editDate>38430.9045138889</editDate></edited>

User avatar
1973Blue2000
Newbie
Newbie
Posts:18
Joined:Thu Jan 01, 1970 12:33 am
Location:United Kingdom
Contact:

#6 Post by 1973Blue2000 » Sun Mar 20, 2005 7:19 pm

Right then,<br>
Fuel pump had fuel in the bowl this morning, tried pumping it by hand,
and it nearly caught first time. Ballast is working fine (Thanks Alec),
so i am presuming the carbs are emptying overnight. Any suggestions??? <img><br>

sahtuning2000
Senior Member
Senior Member
Posts:484
Joined:Thu Apr 08, 2004 7:46 pm
Location:United Kingdom

#7 Post by sahtuning2000 » Sun Mar 20, 2005 10:35 pm

o rings around the mixture adjuster,but you would really notice a strong smell of petrol i think???if you remove them,count how many turns to undo,and take note

Clifford Pope
Senior Member
Senior Member
Posts:940
Joined:Fri Mar 19, 2004 3:50 pm
Location:United Kingdom

#8 Post by Clifford Pope » Mon Mar 21, 2005 12:27 am

I\'ve had problems in the past with the O-rings letting petrol dribble out of the bottom of the float chamber.
<br>Also it could be a leaking valve at the fuel pump, letting petrol run back into the tank (Mark 2 tank is low down, unlike Mark 1?) or an air leak at the filter bowl or on the inlet pipe.

Vanh
Newbie
Newbie
Posts:14
Joined:Thu Jan 01, 1970 12:33 am
Location:United Kingdom

#9 Post by Vanh » Mon Mar 21, 2005 12:49 am

Check the bottom of the carbs for petrol. You can buy a gasket set and just replace the O-rings. You should be able to do this without taking carb off car.
If fuel pump has a bolt down the middle check the seal around the bolt head (think this only applies to ones with a metal dome).
Van
&nbsp;

sahtuning2000
Senior Member
Senior Member
Posts:484
Joined:Thu Apr 08, 2004 7:46 pm
Location:United Kingdom

#10 Post by sahtuning2000 » Mon Mar 21, 2005 1:14 am

all sound advise,feel for petrol on the underside of the cars,or a clean,chassis leg!!

Post Reply

Who is online

Users browsing this forum: No registered users and 14 guests