knocking noise when travelling over bumps at low speed

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Post Reply
Barley 1981

knocking noise when travelling over bumps at low speed

Post by Barley 1981 » Tue Jul 06, 2010 6:32 pm

over the past week we have noticed a banging noise from the bongo when going at low speeds 0-say40mph it is noticable when going on bumpy roads, we crawled underneath to check the exhaust wasn't knocking on anything as that is what it sounds like.....anyone had the same thing?

Thankys =D>
wishmaster
Tribal Elder
Posts: 598
Joined: Sat Mar 14, 2009 8:50 pm
Location: mid glamorgan

Re: knocking noise when travelling over bumps at low speed

Post by wishmaster » Tue Jul 06, 2010 6:37 pm

Drop links & arb bushes come to mind :idea: More technie guys will be along shortly with more advice :wink:

Iz
I have a plan and its as HOT as my pants

IZZY

http://s633.photobucket.com/albums/uu57/izzy2619/
User avatar
mister munkey
Supreme Being
Posts: 5184
Joined: Mon Oct 01, 2007 9:11 pm
Location: Not Far From Royston Vasey, West Yorkshire
Contact:

Re: knocking noise when travelling over bumps at low speed

Post by mister munkey » Tue Jul 06, 2010 6:41 pm

One or 't other without a doubt. Fixable DIY job but a reasonable labour charge at any (reasonably charging) local garage.

Not a Bongo specialist job but try to get genuine Mazda parts fitted, some copies won't last more than a year.
The only true wisdom is in knowing you know nothing. http://www.travelblog.org/Bloggers/MisterMunkey
Barley 1981

Re: knocking noise when travelling over bumps at low speed

Post by Barley 1981 » Tue Jul 06, 2010 6:43 pm

ok to get the parts from this site?? thanks
User avatar
missfixit70
Supreme Being
Posts: 12431
Joined: Fri Jun 01, 2007 3:53 pm
Location: weymouth

Re: knocking noise when travelling over bumps at low speed

Post by missfixit70 » Tue Jul 06, 2010 6:48 pm

Worth getting the more expensive blueprint or Mazda droplinks if they're needed, if you don't want to risk having to change them every year, some people have found cheaper vectra droplinks (for the front, Galaxy ones for the rear) to do the job for years. Make sure you swap them in pairs as well.
If you're going to the anti roll bar bushes, get the brackets done at the same time, or you'll probably only find them snapping shortly afterwards.
You can't polish a turd - but you can roll it in glitter.
Simple Simon
Bongonaut
Posts: 84
Joined: Mon Jun 28, 2004 11:07 am
Location: Chesham, Bucks

Re: knocking noise when travelling over bumps at low speed

Post by Simple Simon » Tue Jul 06, 2010 7:35 pm

And if you mullah the nuts on the anti roll bar bracket as I did, you can get them from Mazda. They are a strange thread but the same ones are fitted to the RX8(?) Certainly a current production Mazda.
2nd one came off easily with sufficent soaking in WD 40 over a couple of days.
User avatar
missfixit70
Supreme Being
Posts: 12431
Joined: Fri Jun 01, 2007 3:53 pm
Location: weymouth

Re: knocking noise when travelling over bumps at low speed

Post by missfixit70 » Tue Jul 06, 2010 7:45 pm

Or Ian is now stocking the nuts in the club shop as well I think :wink: From another droplink thread here - http://www.igmaynard.co.uk/bongo/forum/ ... hilit=nuts -
Ian wrote:After many false starts, I have now managed to get hold of some flanged nuts for the Blueprint drop links. They will be a bit expensive I'm afraid as they are genuine Mazda items. Members price £3 each. Will put on website over the weekend.
You can't polish a turd - but you can roll it in glitter.
User avatar
mikeonb4c
Supreme Being
Posts: 22877
Joined: Sun Nov 05, 2006 10:49 pm
Location: Living with Mango Bongo in the North West but with a tendency to roam
Contact:

Re: knocking noise when travelling over bumps at low speed

Post by mikeonb4c » Tue Jul 06, 2010 7:46 pm

missfixit70 wrote:Worth getting the more expensive blueprint or Mazda droplinks if they're needed, if you don't want to risk having to change them every year, some people have found cheaper vectra droplinks (for the front, Galaxy ones for the rear) to do the job for years. Make sure you swap them in pairs as well.
If you're going to the anti roll bar bushes, get the brackets done at the same time, or you'll probably only find them snapping shortly afterwards.
yes and if its banging rather than just knocking (in another context they mean the same thing but.... :shock: ) then it may be a bracket has already let go and the ARB is a moose on the loose
User avatar
missfixit70
Supreme Being
Posts: 12431
Joined: Fri Jun 01, 2007 3:53 pm
Location: weymouth

Re: knocking noise when travelling over bumps at low speed

Post by missfixit70 » Tue Jul 06, 2010 7:49 pm

My broken rear brackets made more of a graunching, wierdly sounded like it was coming from the front too :?
You can't polish a turd - but you can roll it in glitter.
User avatar
mikeonb4c
Supreme Being
Posts: 22877
Joined: Sun Nov 05, 2006 10:49 pm
Location: Living with Mango Bongo in the North West but with a tendency to roam
Contact:

Re: knocking noise when travelling over bumps at low speed

Post by mikeonb4c » Tue Jul 06, 2010 8:12 pm

missfixit70 wrote:My broken rear brackets made more of a graunching, wierdly sounded like it was coming from the front too :?
Ah! Mine made a banging noise when I cornered. I guess Bongos all make different noises when they're banging :shock:
Image
bongolow
Bongolier
Posts: 414
Joined: Wed Jun 21, 2006 2:51 pm
Location: Manchester
Contact:

Re: knocking noise when travelling over bumps at low speed

Post by bongolow » Tue Jul 06, 2010 10:16 pm

Make sure you use a six-sided socket to get the nuts off. They are extremely tight (mine were anyway) and you can easily round the nuts if you use the twelve notched type.
User avatar
mikeonb4c
Supreme Being
Posts: 22877
Joined: Sun Nov 05, 2006 10:49 pm
Location: Living with Mango Bongo in the North West but with a tendency to roam
Contact:

Re: knocking noise when travelling over bumps at low speed

Post by mikeonb4c » Tue Jul 06, 2010 10:37 pm

bongolow wrote:Make sure you use a six-sided socket to get the nuts off. They are extremely tight (mine were anyway) and you can easily round the nuts if you use the twelve notched type.
Absolutely. And an extension arm for leverage, and give 'em a good spray with Plusgas/WD40/penetrating oil/whatever and leave for a while before undoing them. Occasionally, nothing works and an angle grinder has to be called for, but fingers crossed [-o<
User avatar
mikexgough
Supreme Being
Posts: 6158
Joined: Mon Sep 08, 2008 9:02 pm
Location: Cambridgeshire - where the all the Slodgers reside
Contact:

Re: knocking noise when travelling over bumps at low speed

Post by mikexgough » Wed Jul 07, 2010 8:30 am

Top tips......... and for a pictorial.......

Here you go
Conversant with Bongo Top Pinion Oil Seals

Bongo owning Velotech Cycle Mechanic
Post Reply

Return to “Techie Stuff”