my bongo-should i keep it or sell?

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

bigdaddycain
Supreme Being
Posts: 10637
Joined: Fri May 13, 2005 11:58 am
Location: Ince Lancs

Post by bigdaddycain » Mon Mar 17, 2008 9:11 pm

That's interesting that it doesn't seem to make any difference when you swap two leads over,it implies that your engine is running on four cylinders at the most....Did i read somewhere that you have an oil leak that is contaminating the plugs also?
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
bigdaddycain
Supreme Being
Posts: 10637
Joined: Fri May 13, 2005 11:58 am
Location: Ince Lancs

Post by bigdaddycain » Mon Mar 17, 2008 9:12 pm

As an afterthought, is there numbers for the firing order on the plug leads?

Do they tally with the numbers on the coil pack?
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Post by francophile1947 » Mon Mar 17, 2008 9:16 pm

Even more interesting Ste, that it makes no difference if BOTH leads are disconnected :shock:
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
User avatar
dandywarhol
Supreme Being
Posts: 5446
Joined: Mon Dec 19, 2005 10:18 pm
Location: Edinburgh

Post by dandywarhol » Mon Mar 17, 2008 9:20 pm

lizard wrote:
francophile1947 wrote:If you're doing the rocker cover gaskets, you can check the cams for wear at the same time. Contact Mazda dealer for prices of cams and tappets and take it from there.
It might also be worth trying the ATF trick for silencing the tappets.
As your car has been stood for so long, I'd give it a little while before giving up - it's amazing what a good run can do for a "sticky" engine.

The ATF trick wouldn't be an Italian tune up, by any chance.Image
Fuciffanno.................... :lol:
Whale oil beef hooked
Renault Lunar Telstar
Yamaha TD1C 250, Merc SLK200, KTM Duke 690
User avatar
hogggman
Supreme Being
Posts: 1262
Joined: Mon Feb 11, 2008 8:22 pm
Location: stapleford,nottingham
Contact:

Post by hogggman » Mon Mar 17, 2008 9:23 pm

hi,
yes,there is oil contamination on 3 plugs,but not sure if/how many are/are not running.i don`t see any numbers on the leads,but the guy who imported it has put l-m- r (left-middle-right,i assume)on the plug leads.forgive me,but i only straed looking the bongo over this last weekend,and as yet i don`t know where the distributor or coils are.
thankyou
jamie
bigdaddycain
Supreme Being
Posts: 10637
Joined: Fri May 13, 2005 11:58 am
Location: Ince Lancs

Post by bigdaddycain » Mon Mar 17, 2008 9:32 pm

If the "other" end of the leads i.e. opposite ends of the plugs go to a black box,then that is the coil pack, these can fail, but chances are they will be expensive, it'd be good if a local v6 owner could temporarily swap this item with yours (after new plugs are fitted) to isolate the problem.

At least it will narrow down the amount of new parts you start chucking at the bongo,its throwing good money after bad with that kind of guesswork.

Have you tried a locally respected mobile tuner? Bongo knowledge or not, a decent tune up bloke could pinpoint the problem in no time at all,the priciples are the same no matter what vehicle the engine is fitted to...
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
User avatar
The Great Pretender
Supreme Being
Posts: 2671
Joined: Thu Oct 19, 2006 10:10 pm
Location: Wigan

Post by The Great Pretender » Mon Mar 17, 2008 11:13 pm

Have you done a compression test hogggman?
User avatar
apole
Supreme Being
Posts: 1231
Joined: Fri Sep 14, 2007 4:36 pm
Location: Berks

Post by apole » Tue Mar 18, 2008 11:47 am

Hi,

It maybe worth investing in some spark plug testers, saw some ones in halfords the other day, 4 for under £5. That is a quick and cheap way to see if the spark is arriving at each plug.

Personally I'd do that first, then leave compression testing etc to a good local mechanic, and hour or so of his time would put you in a better position to know what could be wrong.

BTW how does it drive, if it's only firiing on 4 or 5 then surely it would be pretty slow and underpowered?

Keep us posted and don't give up.

Andy
dp bradford
Bongolier
Posts: 446
Joined: Sun Oct 29, 2006 9:45 pm
Location: Idle, Bradford, West Yorkshire
Contact:

Post by dp bradford » Tue Mar 18, 2008 12:21 pm

francophile1947 wrote: Hi hogggman
I used to be a Mazda Technician and when it came to rattly tappets Mazda technical advised an oil change and when refilling the oil you should add 1 ltr of ATF and believe it or not it does work I have done it several times including on an old Audi 80 sport I had and yes it worked on that as well.
Favourite trick with the Rover V8 was to drain around a litre of oil out and then run the engine whilst rapidly pouring the oil back in. Cured sticking tappets for me 8)

Dave
Image
Glenda
Bongolier
Posts: 365
Joined: Tue Nov 20, 2007 7:00 pm
Location: Hove

Post by Glenda » Tue Mar 18, 2008 2:00 pm

Favourite trick with the Rover V8 was to drain around a litre of oil out and then run the engine whilst rapidly pouring the oil back in. Cured sticking tappets for me 8)

Dave[/quote]

I am changing my oil filter in a week or so and will try this trick. Will post if succesful.
Locked

Return to “Techie Stuff”