[Edward]

I think it’s your fuel filter.

Think about this the filter has loads of crap in it, the fuel is being dragged through the filter in one direction. The crap builds up in the exit port end and the engine is starved of fuel looses power and stalls.

Once stalled there is no suction holding the crap on the exit port, it falls back and open the fuel supply. Car runs for a bit and it happens again and again….

I’ve seen this before, but you threw me with the O2 sensor. However with that disconnected and the problem persisting. It’s not the O2 sensor.

I’m 99% certain it’s a fuel issue and most likely at the filter.

What do you think?

Kerb

[Edward]

It does happen at idle, I’ve never noticed it before.

[Edward]

It does happen at idle, I’ve never noticed it before.

[Edward]

I think I’ve found the answer to my own question

http://www.chalwyn.com/tenants/amot/documents/br_ch_spark_arrestors_0412%20Rev3.pdf

[Edward]

I think I’ve found the answer to my own question

http://www.chalwyn.com/tenants/amot/documents/br_ch_spark_arrestors_0412%20Rev3.pdf

[Edward]

Try disconnecting the sensor and see if it still happens.

[Edward]

Try disconnecting the sensor and see if it still happens.

[Edward]

When pure antifreeze is used the boiling point is 150c ish the freeze point is only -10c

As you add water strangely the freezing point lowers and so does the boiling point.

There comes a point where the antifreeze takes on the properties of water if you dilute it too much, I think off the top of my head 60% antifreeze 40% water is the optimum solution.

It’s been a while since I read it but I found it weird and interesting so I remembered it. That’s why you should always dilute antifreeze.

Kerb

[Edward]

When pure antifreeze is used the boiling point is 150c ish the freeze point is only -10c

As you add water strangely the freezing point lowers and so does the boiling point.

There comes a point where the antifreeze takes on the properties of water if you dilute it too much, I think off the top of my head 60% antifreeze 40% water is the optimum solution.

It’s been a while since I read it but I found it weird and interesting so I remembered it. That’s why you should always dilute antifreeze.

Kerb

[Edward]

[quote=”So, the guage will show a pressure that increases with altitude – with everything else held constant. And, the temperature drop with altitude would compensate for the effect too.[/quote]

It doesn’t always gets significantly colder at height, it would be interesting to see.

30 psi at sea level becomes
XX psi @ 1000m @ 15 c
XX psi @ 2000m @ 15 c
Etc.

And the same for tempeture down to -30 and upto +40

Anybody know of any study that answers this?

Kerb

[Edward]

[quote=”So, the guage will show a pressure that increases with altitude – with everything else held constant. And, the temperature drop with altitude would compensate for the effect too.[/quote]

It doesn’t always gets significantly colder at height, it would be interesting to see.

30 psi at sea level becomes
XX psi @ 1000m @ 15 c
XX psi @ 2000m @ 15 c
Etc.

And the same for tempeture down to -30 and upto +40

Anybody know of any study that answers this?

Kerb

[Edward]

Two questions there, if you use premixed antifreeze no its not bad because it’s already diluted.

If its not diluted then YES it is BAD to use 100% pure antifreeze.

[Edward]

Two questions there, if you use premixed antifreeze no its not bad because it’s already diluted.

If its not diluted then YES it is BAD to use 100% pure antifreeze.

[Edward]

Because I’m a vehicle mechanic in the armed forces ans sometimes we drive vehicles up mountains.

We already have devices that allow more air into engines as altitude increases but I’ve never considered tyres before in the same respect.

[Edward]

Because I’m a vehicle mechanic in the armed forces ans sometimes we drive vehicles up mountains.

We already have devices that allow more air into engines as altitude increases but I’ve never considered tyres before in the same respect.

[Author]

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