Search found 277 matches

by Pinger
Mon Jan 11, 2021 1:33 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Bit of an update. I did get some dash representation of what's going on with mixture in the form of an AFR gauge - see pic. The number it shows seems to correspond to petrol stoichiometry as when I checked it against O2 Voltage showing on the AEB software when the O2 Voltage was 0.5V and the display...
by Pinger
Mon Jan 11, 2021 12:53 pm
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

]Or one where they don't expect you to do any maintenance, just throw it away when it starts to wear out. In fairness to solid tappets, they tend not to need adjustment - if the valves are made of decent material that is.... Our 'built in obsolescence' these days seems to be electronics. £1700 for ...
by Pinger
Mon Jan 11, 2021 12:44 pm
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

Some Ford engines use the same arrangement for the tappets as that shown. The Duratec ones I think are where that started. The later Zetecs were shimmed. Though those all 4 pot engines obviously. Not sure is there's a technical reason that stops a hyd tappet being used between a cam lobe and a valv...
by Pinger
Mon Jan 11, 2021 9:46 am
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

The fecker is out! Result! Well done that man! Re one piece tappets - that makes for a very high maintenance engine. On a par with a motorcycle engine. I think it was yourself that mentioned (it must have been on this thread even if not you) that solid tappets were a Jaguar preference. If Ford were...
by Pinger
Sun Jan 10, 2021 10:54 am
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

Thanks for the support guys and some good suggestions there. The internet says, so how could it be wrong, that thread locker hates acetone and chloroform. I unfortunately am right out of the latter, 🤣 bit have some acetone in the cavity in the crank now behind an M12 bolt to hopefully spread it und...
by Pinger
Sat Jan 09, 2021 2:29 pm
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

So that's where I'm at. I have had very bad luck with easy outs in the past so I don't want to break one in the crank here. But maybe I'm into that level now. Really I need an engine... Very bad luck. I suspect you are about right re easy outs and at 'that level now'. Two things I'd try before goin...
by Pinger
Wed Jan 06, 2021 10:22 am
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

Not that you asked me, and I don't actually know lol, but I have heard of stiffer springs used on inlet valves on high boost engines for this reason (not that the supercharger provides high boost). I suppose it wouldn't be too difficult to calculate how much of a difference having a bar or so of bo...
by Pinger
Tue Jan 05, 2021 4:24 pm
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

On the supercharged engines it is nearly always the inlet valves that suffer and go tight, hardly ever the exhaust as you would expect with more usual vsr. I believe this down to the high intake air temperature, it is not that uncommon for non gas converted R/R s/c to suffer from this, although con...
by Pinger
Tue Jan 05, 2021 10:49 am
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

Couple of points. Regarding comments of surprise that any VSR has occurred on inlet valves (vs exhaust) my understanding is that it is inlet valves that a lube system is there to protect. The lube being burned by the time the exhaust valves have exposure to it. Engine in question - isn't it derived ...
by Pinger
Mon Jan 04, 2021 4:17 pm
Forum: General Discussion
Topic: Engineering company suggestions for hard valves/seats
Replies: 54
Views: 702

Re: Engineering company suggestions for hard valves/seats

This.... I couldn't work out from your pics which was inlet cam and which was the exhaust. I figured it looked to be the one with the main timing chain on it but your pic of the tappet push down thingy seemed to show it as being the one driven by the single chain. I would assume that main chain has ...
by Pinger
Mon Dec 07, 2020 1:45 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Perhaps the best way of maximising range from your current setup (assuming mixture etc is already correct so the engine is running most efficiently) would be to bend the float arm in your tank so your tank will take more gas. Not so desperate as want to open up the tank but your point is valid. Re ...
by Pinger
Mon Dec 07, 2020 12:01 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Thanks LPGC. I'll give that some thought and see how to best maximise my fill. Typically a working day for me involves a 100-130 mile run. If I could get two days from one tankful it would be a useful time saver (just from the stop and the payment aspect though I mainly pass the filling station anyw...
by Pinger
Sun Dec 06, 2020 6:10 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Yes - that's the set-up. Just around the corner - if you see the toilets, you've gone too far. It is LCD and coupled to the cashier's desk though. The CCTV is to stop bottle filling and let them know there's a customer there I think. Genuinely, I had no idea the temp compensation was used. Is this t...
by Pinger
Sun Dec 06, 2020 5:35 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

I'll pay more attention to the set-up I fuel from and take a photo if I remember and post here. It's the only LPG pump I've used so have no idea how modern. This is rural Scotland though.... (take your mobile phone signal home in a bucket sort of place where the snails go door to door because it's f...
by Pinger
Sun Dec 06, 2020 3:00 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Sounds like a mixture of terminologies used on your course. 'Superheated' is a term usually reserved for steam when it is heated way beyond the temperature required to boil the water it came from irrespective of the pressure it is at and is used by those who run steam plant eg, steam turbines. Your ...
by Pinger
Sun Dec 06, 2020 11:12 am
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Could do the maths but some AC systems use propane as refrigerant If you look at your fridge and see that it is using R290 refrigerant, that's Propane and is quite common. Others use R600A which is isoButane. Refrigerant pressure varies with temperature but at an ambient of 25 degrees C the compres...
by Pinger
Sun Dec 06, 2020 11:04 am
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Obviously I wouldn't be able to get 95L in a 93L tank, but I can get the mass of 95L at cold temp (so volume is smaller) in a 93L tank... But regardless of temp I pay for the correct mass of gas, just that the pump sells in terms of volume corrected for 15degC, which is just the same as buying by m...
by Pinger
Sat Dec 05, 2020 5:17 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Yes the tank will at least fill a bit slower if it's warmer because it's pressure will be higher if warmer. On the other hand as you use gas from the tank the headroom above liquid increases and some liquid has to boil to maintain tank pressure, the boiling has a cooling effect on the tank... so th...
by Pinger
Sat Dec 05, 2020 5:11 pm
Forum: Running a V8 on LPG
Topic: Advice please!
Replies: 344
Views: 18011

Re: Advice please!

Thanks LPGC. It will be done as described and we'll see if it works (or not).
by Pinger
Sat Dec 05, 2020 4:30 pm
Forum: General Discussion
Topic: Brim to brim...
Replies: 80
Views: 4433

Re: Brim to brim...

Some forecourt pumps use ambient temperature (or forecourt bulk tank temp) as a reference temperature, the temperature reading then effects forecourt pump pressure.. Or the fourecourt pump may just add a few bars of pressure to forecourt tank pressure. Assuming the vehicle tank is at the same tempe...