Couple of loose hoses under the bonnet!!
Couple of loose hoses under the bonnet!!
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davido140

Original Poster:

9,614 posts

255 months

Sunday 27th July 2008
quotequote all
Had the bonnet off yesterday for the first time to re-align the windscreen wipers.

Whilst have a nosey around at all the gubbins (its like a tractor engine!!!) I noticed a couple of loose hoses, first a large-ish diameter one that appears to be a breather between the airbox and oil swirl pot. Second was a small diameter hose going to a little bosch unit mounted near the very front of the engine.

Lord knows how they "popped off", the larger one was secured with a cable tie (as pretty much everything else under there appears to be!!) and I've put it back and tightened it up.

The smaller was just a friction fitting.

Any clue what they are for? I havent had any probs with the car and its been running better than ever lately.

Cheers



NCE 61

2,457 posts

310 months

Monday 28th July 2008
quotequote all
The large one is the oil tank breather, so any oil fumes from the tank get pulled into the airbox, would make no difference to the running of the engine ,it could just get a bit oily under the bonnet.

Don't know what the smaller one would be. maybe somthing to do with the window washers?

davido140

Original Poster:

9,614 posts

255 months

Monday 28th July 2008
quotequote all
cool thanks,

Thought thats what the larger hose was for.

I might have another look next weekend and see if I cant trace the other little hose back to somewhere see what it might be!

Cheers


Daston

6,148 posts

232 months

Monday 28th July 2008
quotequote all
NCE 61 said:
The large one is the oil tank breather, so any oil fumes from the tank get pulled into the airbox, would make no difference to the running of the engine ,it could just get a bit oily under the bonnet.

Don't know what the smaller one would be. maybe somthing to do with the window washers?
Is this what makes the air filter covered in oil then and the potential cause to the fire's that are caused if the car back fires? If so would a hose to say a small K&N breather filter not be a safer solution especially to those who fit the ACT carbon air box and trumpets?

davido140

Original Poster:

9,614 posts

255 months

Wednesday 30th July 2008
quotequote all
fire .... backfire??????

New one on me, I did experience an almighty backfire whilst trying to race a bike the other week, could this have been when the pipe popped off?

did I have a lucky escape?

Daston

6,148 posts

232 months

Thursday 31st July 2008
quotequote all
dont worry its only happend to 2 cars I think and both had the Act carbon air box and trumpets so they think that might be related although the standard one could be just as bad. Think both happend at start up.

NCE 61

2,457 posts

310 months

Thursday 31st July 2008
quotequote all
Daston said:
dont worry its only happend to 2 cars I think and both had the Act carbon air box and trumpets so they think that might be related although the standard one could be just as bad. Think both happend at start up.
Have heard similar, but not with the ACT carbon air boxes only the standard one, which does not surprise me with the poor fit and gaps on the clean side of the filter.The problem does appear to be on start up with possibly a bit to much throttle.

Chequred Demon

508 posts

223 months

Thursday 31st July 2008
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You do need to be very careful with start up backfires and get them sorted quickly

My SBC had this problem and eventually it caused an internal explosion and caught fire.

It blew off the rockers and obliteratd the rocker gaskets, it blew down the sump, it blew out the front timing cover and seal, damaged the carb and turned the oil to a thick gravy. Cost me alot of money to repair, even though parts were dirt cheap.

Daston

6,148 posts

232 months

Friday 1st August 2008
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This may be a real stupid question (I know about engines and stuff but more of a hobbist). How do you tell that the engine has backfired when starting up? Does it go bang and stall or just stall?