Engine Knocking (like piston gone) but no smoke?

manwithsound · Post by **manwithsound** » Fri Apr 24, 2015 2:41 pm

Hi there,

Bob, (my bongo) has decided to start knocking (like a piston has gone) but, i've had this happen before on a van and black smoke billowed out the back and i lost power. I still have all the pull and no smoke out the back (noy even grey/blue on start up)

I'm massively confused, any ideas anyone?

Recently had full service too !

Cheers J

Gasy · Post by **Gasy** » Fri Apr 24, 2015 3:06 pm

What did it have done on full service
I'd take it back
What engine is it

manwithsound · Post by **manwithsound** » Fri Apr 24, 2015 3:25 pm

Gasy wrote:What did it have done on full service
I'd take it back
What engine is it

Just new oil, oil filter, new air filter, that's it

2.5 diesel 1996

Gasy · Post by **Gasy** » Fri Apr 24, 2015 3:48 pm

That shouldn't of messed any thing up
unless oil to thin
what did they put in
have you checked oil level on dip stick

manwithsound · Post by **manwithsound** » Fri Apr 24, 2015 5:31 pm

Gasy wrote:That shouldn't of messed any thing up
unless oil to thin
what did they put in
have you checked oil level on dip stick

Yep checked all that, oil was coolio

I've uploaded a video to you tube

http://youtu.be/lHqQfu7jhEo

i'm absolutely stumped!?

Cheers J

Post by **Bob** » Fri Apr 24, 2015 6:39 pm

Possibly a Red Herring, but could it have got some wrong fuel in it?

manwithsound · Post by **manwithsound** » Fri Apr 24, 2015 8:14 pm

[quote="Bob"]Possibly a Red Herring, but could it have got some wrong fuel in it?[/

defo a good point to make , but she's full of diesel for sure

Cheers

J

Post by **Bob** » Fri Apr 24, 2015 8:55 pm

Didn't want to send you the wrong way, but all avenues...

Let's hope someone has some more ideas.

Northern Bongolow · Post by **Northern Bongolow** » Fri Apr 24, 2015 10:56 pm

its a bit of a shot but. is the oil warning light on or pulsing,
what brand of oil filter was fitted.???. they have a pressure relief valve inside, if the filter gets blocked or is faulty ive heard them bang quite loud , admittedly, not this loud but check its not just a duff filter, they can get crushed when a muppet uses the wrong strap to tighten em on.

after that i would pull the rocker cover off and check the valves/shaft is all fine, they are known to break rockers, and the shafts can break in pieces, usually under the bearings so you cannot see the break but some of the valves/rockers dont move. ive seen 2 run really well with broken shafts.

ConAndChar · Post by **ConAndChar** » Sat Apr 25, 2015 10:48 am

Sounds like mine

I'll let you know what the garage says is wrong with mine... if and when I ever get a diagnosis

manwithsound · Post by **manwithsound** » Thu Apr 30, 2015 6:34 pm

ConAndChar wrote:Sounds like mine I'll let you know what the garage says is wrong with mine... if and when I ever get a diagnosis

That would be great, please let me know

Thanks J

ConAndChar · Post by **ConAndChar** » Thu Apr 30, 2015 6:38 pm

If you take the air filter lid off is there a popping noise? One guy who looked at mine diagnosed a dropped valve when he heard this noise, but I'm still waiting on the garage to actually get their finger out and strip my engine down to find out for sure

manwithsound · Post by **manwithsound** » Thu Apr 30, 2015 10:32 pm

ConAndChar wrote:If you take the air filter lid off is there a popping noise? One guy who looked at mine diagnosed a dropped valve when he heard this noise, but I'm still waiting on the garage to actually get their finger out and strip my engine down to find out for sure

Oh dear!!

I got the pop !!

Gutted !

Anyone wanna buy a Bongo with a Duffed engine !! LOL

Engine Knocking (like piston gone) but no smoke?

Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?

Re: Engine Knocking (like piston gone) but no smoke?