MKI / MKII S type 240 340 & Daimler 1955 - 1967

Engine stops when accelerating

Thread Tools
 
Search this Thread
 
  #1  
Old 08-07-2022, 03:53 AM
Georges Merran's Avatar
Junior Member
Thread Starter
Join Date: Oct 2020
Posts: 8
Received 0 Likes on 0 Posts
Default Engine stops when accelerating

Hello allRecently, I was driving when the engine suddenly stops. I let the car for one hour or two and it starts again.
Since I bought the car two years ago I always ear the petrol pump noise (pump noise with clang clang then ok) when the ignition is on .
after this 2 hours the engine starts again I filled up the petrol tank (it was not empty but 1/8 ).
I ear the petrol pump and the engine start. I drive a bit and when accelerating I feel that the engine does not follow the acceleration request. Even the engine start to decrease in rev/min and stopped again. I decrease the power to 20 km/h low rev and it keeps running until home.
I fell that if I accelerating again the engine will stopped.
What is your experience on that matter, what are your advices?
Thanks
Georges in Finland
The car is a MK1 2,4 l from1956
 
  #2  
Old 08-07-2022, 05:28 AM
Join Date: Aug 2018
Posts: 700
Likes: 0
Received 332 Likes on 199 Posts
Default

Sounds like a classic fuel filter clog or/and a lot of sediment at the pickup in the tank filter.
 
The following users liked this post:
Glyn M Ruck (08-07-2022)
  #3  
Old 08-07-2022, 06:10 AM
Glyn M Ruck's Avatar
Veteran Member
Join Date: Jul 2012
Location: Llandudno, Cape Town, South Africa
Posts: 5,129
Received 1,357 Likes on 1,053 Posts
Default

You could also be suffering fuel vapourisation. Do you use this car often. Winter gas in the tank with more light ends will do this in summer.
Oilco's make Winter & Summer grade gasoline. If you hit critical temperature on winter gas the car will stop.

Agree with CF. Check all filters first.

I would also check the fuel pick up pipe in the tank. They rust through and the fuel pump for pressure. This is a very low pressure system & you need at least 3 psi.

The Solex carbs were always troublesome. Make sure they are spotlessly clean in all areas & that float levels are correct. Check needle & seat.
 

Last edited by Glyn M Ruck; 08-07-2022 at 06:28 AM.
  #4  
Old 08-07-2022, 10:57 AM
Georges Merran's Avatar
Junior Member
Thread Starter
Join Date: Oct 2020
Posts: 8
Received 0 Likes on 0 Posts
Default


Where can I find the filter?

 
  #5  
Old 08-07-2022, 11:20 AM
hueyhoolihan's Avatar
Senior Member
Join Date: Jul 2022
Posts: 236
Received 162 Likes on 100 Posts
Default

on a car of that vintage, considering how much work has probably been done on it over the years, it (or they) could be anywhere from inside the gas tank to the float bowls.

i've seen some nice glass bodied ones on mark 2's in the engine compartment mounted on the right side wheel well.

does sound like fuel starvation. there are a number of causes, but i'd be praying it was a plugged filter or a kinked line. vapor lock can be tricky to diagnose and even worse to fix, IME.
 

Last edited by hueyhoolihan; 08-07-2022 at 11:28 AM.
The following users liked this post:
Glyn M Ruck (08-07-2022)
  #6  
Old 08-07-2022, 01:51 PM
Peter3442's Avatar
Veteran Member
Join Date: Aug 2020
Location: Oxford, UK
Posts: 1,759
Received 1,220 Likes on 919 Posts
Default

From memory, there's a small vent hole on the filler pipe to the tank. Make sure that it's not blocked.
 
The following users liked this post:
Glyn M Ruck (08-07-2022)
  #7  
Old 08-07-2022, 02:31 PM
Glyn M Ruck's Avatar
Veteran Member
Join Date: Jul 2012
Location: Llandudno, Cape Town, South Africa
Posts: 5,129
Received 1,357 Likes on 1,053 Posts
Default

Someone has been doing a lot of re-plumbing on that car. None of those are original hoses. I'm not surprised you can't find the filter.

The standard filter is mounted here on the inner RHS wheel arch in front of the wiper motor. Shown perfectly on this car under restoration.





 

Last edited by Glyn M Ruck; 08-07-2022 at 02:33 PM.
  #8  
Old 08-13-2022, 03:09 AM
Bill Mac's Avatar
Senior Member
Join Date: Nov 2012
Location: Joyner, Queensland, Australia
Posts: 891
Received 996 Likes on 577 Posts
Default

Georges
I am a MK1/MK2 register leader in my local Jaguar Drivers Club
I have run across this sort of problem on a number of occasions.
Again and again it has been a partially clogged in tank fuel filter.
Starts and runs Ok but dies off after a few Ks.
Let it sit for a while and restarts ok but cuts out or goes rough starving in a few Ks.
I would start by pulling the in tank filter.
 
The following users liked this post:
Glyn M Ruck (08-13-2022)
  #9  
Old 08-13-2022, 08:25 AM
Glyn M Ruck's Avatar
Veteran Member
Join Date: Jul 2012
Location: Llandudno, Cape Town, South Africa
Posts: 5,129
Received 1,357 Likes on 1,053 Posts
Default

Wise advice from someone with experience of that model.!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lycaon
XJ6 & XJ12 Series I, II & III
38
02-27-2023 12:11 PM
Forcedair1
XJS ( X27 )
19
10-23-2020 12:40 PM
Kev-P-
XK8 / XKR ( X100 )
5
07-03-2020 09:37 AM
Roger77
XJ XJ8 / XJR ( X308 )
2
01-17-2013 05:51 PM
TonyW
XJ XJ8 / XJR ( X308 )
1
07-27-2009 05:33 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Engine stops when accelerating



All times are GMT -5. The time now is 02:24 AM.