Juddering when Accelerating

Discuss mechanical problems here.
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
User avatar
MColes
Minor Legend
Posts: 1508
Joined: Fri Jun 13, 2008 7:23 pm
Location: Cardiff
MMOC Member: No

Juddering when Accelerating

Post by MColes »

When accelerating slowly my car is fine, when having to put my foot down a bit it starts to judder like it is in the wrong gear.

I presume the clutch needs adjusting? But any other suggestions before the morning when I can go tinker?
Matt Coles
Young Members Registrar



Find out more about the Young Members Register HERE
mike.perry
Series MM Registrar
Posts: 10183
Joined: Sun Jul 24, 2005 11:39 pm
Location: Reading
MMOC Member: No

Re: Juddering when Accelerating

Post by mike.perry »

Engine Steady Bar, Gearbox Tension Cable, Slack Propshaft Bolts, Backlash in the Diff
[sig]3580[/sig]
User avatar
MColes
Minor Legend
Posts: 1508
Joined: Fri Jun 13, 2008 7:23 pm
Location: Cardiff
MMOC Member: No

Re: Juddering when Accelerating

Post by MColes »

Checked all of the above, turns out the Engine Steady bar AND the Gearbox tension cable were slack... but it wasn't that!

It was the points gap :oops:
Matt Coles
Young Members Registrar



Find out more about the Young Members Register HERE
Declan_Burns
Minor Legend
Posts: 1956
Joined: Wed Apr 18, 2007 7:32 am
Location: Düsseldorf, Germany
MMOC Member: No

Re: Juddering when Accelerating

Post by Declan_Burns »

I had exactly the same-the points gap had closed up and it hesitated at low revs. I check it more often now.
Declan


Regards
Declan
User avatar
MColes
Minor Legend
Posts: 1508
Joined: Fri Jun 13, 2008 7:23 pm
Location: Cardiff
MMOC Member: No

Re: Juddering when Accelerating

Post by MColes »

Really threw me off this one, I was thinking the clutch or something mechanical rather than points :roll:
Matt Coles
Young Members Registrar



Find out more about the Young Members Register HERE
Declan_Burns
Minor Legend
Posts: 1956
Joined: Wed Apr 18, 2007 7:32 am
Location: Düsseldorf, Germany
MMOC Member: No

Re: Juddering when Accelerating

Post by Declan_Burns »

Same here
Declan


Regards
Declan
bmcecosse
Minor Maniac
Posts: 46561
Joined: Wed Feb 16, 2005 11:24 pm
Location: ML9
MMOC Member: No

Re: Juddering when Accelerating

Post by bmcecosse »

If it had been described as 'misfiring' rather than 'juddering' which suggests mechanical problems........
ImageImage
Image
User avatar
MColes
Minor Legend
Posts: 1508
Joined: Fri Jun 13, 2008 7:23 pm
Location: Cardiff
MMOC Member: No

Re: Juddering when Accelerating

Post by MColes »

it did feel more like a 'judder' though... I love these technical terms :lol:
Matt Coles
Young Members Registrar



Find out more about the Young Members Register HERE
Rob_Jennings
Minor Addict
Posts: 749
Joined: Fri Mar 24, 2006 11:33 am
Location: Rickmansworth / Watford (NW London)
MMOC Member: No

Re: Juddering when Accelerating

Post by Rob_Jennings »

another one that can cause this is lack of oil or too much oil in the carb/dashpot or generally a messy carb. The piston in there can stick or bounce causing the car to stutter a lot.

remove the carb housing carefully with the piston, clean throughly and replace the oil on the dash pot when replacing the unit taking care not to overfill (this end up back inside the carb causing piston to get all sticky again) I found this worked wonders.
Rob
Lizzy 1970 Morris Minor Traveller and Noah 1969 Morris Mini Traveller
ImageImage
Post Reply