Search found 253 matches

by lowact
Sat Aug 15, 2020 11:31 pm
Forum: Series 3
Topic: What Causes Petrol to Leak from the Exhaust
Replies: 36
Views: 834
Australia

Re: What Causes Petrol to Leak from the Exhaust

If it is petrol, maybe a fuel line leak onto the outside of the exhaust, dripping off when it reaches the joint?
by lowact
Sat Aug 08, 2020 2:41 am
Forum: Series 3
Topic: Overdrive S3
Replies: 17
Views: 750
Australia

Re: Overdrive S3

Is straightforward when yr S3 is manual if you buy an xj6 OD box for the parts, just swap the mainshafts and replace extension housing with the OD, screw on an extra switch, job done. Dave from OD Spares in Rugby is recommended for sourcing parts and refurb. Here is pic of S3 box with OD added, fore...
by lowact
Mon Jul 27, 2020 3:37 am
Forum: Series 3
Topic: Fuel return valve series 3 V12
Replies: 7
Views: 411
Australia

Re: Fuel return valve series 3 V12

The valve in backwards may not stop the flow completely and doesn't need to, I can blow through mine backwards is I try really hard. I once had a badly blocked fuel filter when driving overnight, Melb to Canberra. Didn't realise at the time that that was the problem. Couldn't overtake a skateboard. ...
by lowact
Sat Jul 25, 2020 12:45 pm
Forum: Series 3
Topic: Fuel return valve series 3 V12
Replies: 7
Views: 411
Australia

Re: Fuel return valve series 3 V12

Should do what it did. Have you put it in backwards?
by lowact
Fri Jul 24, 2020 12:24 am
Forum: Series 3
Topic: Heating and ventilation *** Updated
Replies: 31
Views: 7305
Australia

Re: Heating and ventilation *** Updated

Hello Colin / lowact, Can you help me by clarifying your post please. I've added a marked up copy of your photo to ensure that I understand your explanation of the valve operation. My recently re-commissioned series 3 seems to always have warm air flowing into the cabin. Not an ideal situation in Q...
by lowact
Fri Jul 24, 2020 12:09 am
Forum: Series 3
Topic: Ticking noise disappearing when engaging clutch
Replies: 6
Views: 374
Australia

Re: Ticking noise disappearing when engaging clutch

Bad news is, I never found the cause. Car is in very many tiny little bits atm, If the noise is still there after I've put it back together .... I will not be impressed.
by lowact
Thu Jul 23, 2020 10:14 am
Forum: Series 3
Topic: Ticking noise disappearing when engaging clutch
Replies: 6
Views: 374
Australia

Re: Ticking noise disappearing when engaging clutch

Does it go away when the car is warmed up? I.e is it there when you head off but not when you return? That was what mine did, I ignored it, until it stopped going away ...
by lowact
Sun Jul 12, 2020 1:55 pm
Forum: Series 3
Topic: V12 Overheating: The contributing factors
Replies: 13
Views: 697
Australia

Re: V12 Overheating: The contributing factors

“Thermal shock” is the term that is used, I didn’t invent it. Most technical publications on the subject, now Wikipedia, look up “Wax thermostatic element”. “Rich fueling” should not be on the list, even as a 2ndry consideration? Overheating is when the temperature is not what you want it to be. Ret...
by lowact
Sun Jul 12, 2020 3:51 am
Forum: Series 3
Topic: V12 Overheating: The contributing factors
Replies: 13
Views: 697
Australia

Re: V12 Overheating: The contributing factors

If you have overheating issues, a good starting point is to know absolutely that it is not a design problem, that the Jaguar design is about as good as it possibly could be. Modifying thermostats belongs in the same category as modifying (upgrading) radiator fans; “treating the symptom not the cause...
by lowact
Tue Jul 07, 2020 11:35 pm
Forum: Series 3
Topic: Gearbox Crunch
Replies: 4
Views: 297
Australia

Re: Gearbox Crunch

1st try topping up yr gearbox oil. My car had same problem when "recently purchased". Fixed the crunch but exposed the root cause, stuffed rear oil sesl.
by lowact
Thu Jun 25, 2020 1:42 pm
Forum: Series 3
Topic: Oil pressure gauge
Replies: 26
Views: 5004
Australia

Re: Oil pressure gauge

With confidence buoyed by the fading of memories of past failures I have embarked on the next great challenge, accurate oil pressure indication. Now I know that the consensus of the enlightened is to ditch the electric gauge in favour of a mechanical one, to the extent that SNGB now stock them as up...
by lowact
Wed Jun 24, 2020 1:25 am
Forum: Series 3
Topic: Who knows about the Ignition timing ?
Replies: 4
Views: 412
Australia

Re: Who knows about the Ignition timing ?

Ignition advance is done to make the engine more efficient (use less petrol). Ignition retard is to make the engine warm up faster, by making the engine temporarily inefficient only when cold and idling (inefficient = less torque, more heat). The source of the vacuum and the type of distributor must...
by lowact
Wed Jun 24, 2020 12:24 am
Forum: Series 3
Topic: Not all cylinders firing...
Replies: 7
Views: 540
Australia

Re: Not all cylinders firing...

Left bank is B bank, Right bank is A bank. I.e. D = B, P = A Firing order is 1A, 6B, 5A, 2B, 3A, 4B, 6A, 1B, 2A, 5B, 4A, 3B. I suspect either yr coil is stuffed, or it is the wrong one, or there is a very poor connection or wire supplying it. When using the in-line spark tester, were all the other p...
by lowact
Tue Jun 23, 2020 9:10 am
Forum: Series 3
Topic: Exhaust Fantails.
Replies: 3
Views: 369
Australia

Re: Exhaust Fantails.

Garry, i'm going the other way, from quad to twin. Will swap if you want?
by lowact
Sat Jun 20, 2020 1:39 pm
Forum: Series 3
Topic: Engine & gearbox dimensions
Replies: 16
Views: 889
Australia

Re: Engine & gearbox dimensions

These dimensions may also be useful: https://i.postimg.cc/Wzhhh2X1/20200620-225607.jpg This is showing Jag 4speed with the tunnel cover propped into correct position over. Box is in 2nd gear, i.e. the lever is as far back as it goes, note the angle of the gear lever. Note also that the gear lever is...
by lowact
Thu Jun 18, 2020 4:22 am
Forum: Series 3
Topic: Engine & gearbox dimensions
Replies: 16
Views: 889
Australia

Re: Engine & gearbox dimensions

That’s correct, sum gives you the position of the lever when it is vertical, i.e. a reference dimension to locate the lever in the cabin, not were it mounts to the gearbox which is offset (forward of this). On E-type the lever is as far back as it can go, zero opportunity for it to back any further ...
by lowact
Tue Jun 16, 2020 5:54 am
Forum: Series 3
Topic: Engine & gearbox dimensions
Replies: 16
Views: 889
Australia

Re: Engine & gearbox dimensions

OEM, bellhousing length = 156mm. Gearbox length from bellhousing to vertical gear lever = 316 mm. Any other dimensions or photos req’d just list them. As well as fit, consider torque and ratio. XJ81 (6 litre HE) engine max torque > 460 Nm (340 ft-lb), gearbox may need to be rated at more than this i...
by lowact
Sun Jun 14, 2020 2:02 pm
Forum: Series 3
Topic: Emission control - removal
Replies: 11
Views: 2081
Australia

Re: Emission control - removal

Does anyone else have any suggestions or recommendations? I’m interpreting Curtis that you’re on the same trajectory as me, US car, drive it around for a while (Stage I) while planning significant upgrades (Stage 2). I’m deep into Stage 2. With the state of your car as described (hoses) you might f...
by lowact
Fri May 22, 2020 3:30 pm
Forum: Series 3
Topic: Dedicated LPG?
Replies: 13
Views: 1076
Australia

Re: Dedicated LPG?

Bob, I hope that Spitfire is saved for posterity? Garry, my car is my hobby, making sympathetic improvements. I.e. I bought it to mod. Gridlocked in a taxi on the Tullamarine freeway, missing flight again, an FHC cruised past in the opposite direction, I had an epiphany. Bought a cheap OTS sight uns...
by lowact
Tue May 19, 2020 11:13 pm
Forum: Series 3
Topic: Cap and rotor failure
Replies: 4
Views: 538
Australia

Re: Cap and rotor failure

Was the cap ok, just the rotor that was softening? I think they are the same material? Maybe SNGB should review their souces of both.