Search found 253 matches

by lowact
Thu Nov 28, 2019 1:59 am
Forum: Series 3
Topic: Need Rear Bonnet Grille bd35934 + bd35935 for my S3 car
Replies: 6
Views: 1259
Australia

Re: Need Rear Bonnet Grille bd35934 + bd35935 for my S3 car

None of these still avail? https://www.terrysjag.com/product/BD35935.html https://www.sngbarratt.com/uk/#!/English/parts/fe18644d-1fef-4a95-9f21-5851d385e2fe https://www.vintagejagparts.com/product/jaguar-bd35935-e-type-chrome-bonnet-vent-no-mounting-tabs-on-bottom-edge/ https://www.vintagejagparts....
by lowact
Tue Nov 26, 2019 1:57 pm
Forum: Series 3
Topic: Black smoke Series 3 2+2
Replies: 41
Views: 4714
Australia

Re: Black smoke Series 3 2+2

Image
by lowact
Tue Nov 26, 2019 11:29 am
Forum: Series 3
Topic: Black smoke Series 3 2+2
Replies: 41
Views: 4714
Australia

Re: Black smoke Series 3 2+2

I note this has been a problem since restoration. Is it possible that this might be caused by the camshafts having been reinstalled slightly out of sync?
by lowact
Tue Nov 26, 2019 7:19 am
Forum: Series 3
Topic: About distributors
Replies: 2
Views: 1402
Australia

About distributors

This is regarding the original distributors fitted to Jaguar V12’s up until 1989, including modified variants available from SNGB and EFIH. Opus ignition systems on pre-HE engines used Lucas 36DE12 distributors, with mechanical (centrifugal) advance and vacuum retard. There are 3 wires connecting to...
by lowact
Sun Nov 24, 2019 11:44 pm
Forum: Series 3
Topic: XJ12 Engine
Replies: 18
Views: 3046
Australia

Re: XJ12 Engine

Im also Going Tremac too T5 kit including new bellhousing? Pre-HE and HE were designed for different transmissions, have different bell-housing bolt patterns, actually bolts align well enough, its the locating lugs that are different. Currently u have a Pre-HE Jaguar 4 speed on the back of an HE en...
by lowact
Fri Nov 22, 2019 10:48 pm
Forum: Series 3
Topic: Original engine or upgrade?
Replies: 16
Views: 2336
Australia

Re: Original engine or upgrade?

Appologies, you are correct, I keep forgetting that the 2+2's had different numbering system.
by lowact
Fri Nov 22, 2019 1:43 pm
Forum: Series 3
Topic: XJ12 Engine
Replies: 18
Views: 3046
Australia

Re: XJ12 Engine

Reason for the compression test, to confirm you haven't been lumped with HE (flat top) pistons under yr flat (preHE) heads. This would give you monster compression with lots of piston ring blow-by that would pressurise the crankcase and blow a lot of oil vapour out the rear crankshaft seal, this is ...
by lowact
Fri Nov 22, 2019 1:33 pm
Forum: Series 3
Topic: Original engine or upgrade?
Replies: 16
Views: 2336
Australia

Re: Original engine or upgrade?

Another consideration, and its a biggie, is whether the steering has been converted. If the steering wheel is on the right hand side and the chassis number is 1S..., strictly speaking it's not a "matching numbers" car, no cashed-up rivet counter would have anything to do with it. In which case mod a...
by lowact
Wed Nov 20, 2019 7:35 am
Forum: Series 3
Topic: Original engine or upgrade?
Replies: 16
Views: 2336
Australia

Re: Original engine or upgrade?

Oh boy, this topic is going to be huge ... I'm up to my elbows in a HE upgrade as we speak, so have been considering the implications for a long time now .... At least 3 subtopics: For how much longer will will be able to drive our cars? What effect will upgrade reduce the value? Will upgrade make n...
by lowact
Sat Nov 16, 2019 10:59 am
Forum: Series 3
Topic: 3.07 2.88 CWP
Replies: 25
Views: 4110
Australia

Re: 3.07 2.88 CWP

Can't say absolutely, imo tyre pressure would need to be unchanged for absolutely no change to speedo. I'm considering that rolling radius, due to the flattened bit on the bottom of the tyre, is caused by the weight of the vehicle, with tyres at recommended pressure. Low tyre pressure would increase...
by lowact
Sat Nov 16, 2019 9:42 am
Forum: Series 3
Topic: 3.07 2.88 CWP
Replies: 25
Views: 4110
Australia

Re: 3.07 2.88 CWP

I’ll see your pedantic and raise you one… that is sometimes done but imo is wrong, distance travelled is the tyre perimeter. We only use the radius to calculate the perimeter, which doesn’t change no matter how much the tyre is squashed. So the correct calculation is actually the easier one ...
by lowact
Sat Nov 16, 2019 5:58 am
Forum: Series 3
Topic: 3.07 2.88 CWP
Replies: 25
Views: 4110
Australia

Re: 3.07 2.88 CWP

Here is the maths: Engine speed, ES = 2700 rpm Gearbox ratio, GB = 1 (4th gear) Diff (final drive) ratio, FD = 2.88 Wheel speed, WS = ES / GB / FD = 937.5 rpm Tyre perimeter (distance travelled per wheel rev) can be calculated from the designation on the tyre, e.g. for 215/70R15: Nominal Tyre height...
by lowact
Fri Nov 15, 2019 10:42 am
Forum: Series 3
Topic: Loss of Self Centring Steering
Replies: 6
Views: 1202
Australia

Re: Loss of Self Centring Steering

My car came with a reco'd steering rack. It was hard to drive in a straight line. I found the piston O-ring had been nicked, tell-tale was hydraulic oil in one of the boots. New seal kit fixed it.
by lowact
Thu Nov 14, 2019 5:03 am
Forum: Series 3
Topic: 3.07 2.88 CWP
Replies: 25
Views: 4110
Australia

Re: 3.07 2.88 CWP

Russ, did you recalibrate yr speedo? Yr rpm vs mph values seem a bit out, considering also that Smiths (most) speedos read slightly high ... I have made me a calculator to address the perennial, which gearbox and diff question, this also predicts true rpm versus mph. Some examples: the 2;88 Diff Giv...
by lowact
Tue Nov 12, 2019 7:25 am
Forum: Series 3
Topic: Head removal tool
Replies: 4
Views: 1507
Australia

Re: Head removal tool

Reporting that this design, with nuts under the plate instead of threaded holes in the plate, is not suitable for preHE. Following photo, tappet block on the right is HE, flange has cut-outs above the head bolt locations that provide clearance for the nuts. On the left is my E-type tappet block, no ...
by lowact
Tue Nov 12, 2019 7:04 am
Forum: Series 3
Topic: Acrid smoke and low vacuum
Replies: 29
Views: 5373
Australia

Re: Acrid smoke and low vacuum

Timing chain tensioner good? Thought it was, but i was wrong. Couldn't tell by looking but as soon as I tried to ease off a bit of tension it fell apart. No flex there at all, Should have known, 50 yo plastic ... https://i.postimg.cc/CKDYtNB8/20191112-170445.jpg Time for a beer while I ponder my ne...
by lowact
Sun Nov 10, 2019 1:00 pm
Forum: Series 3
Topic: Acrid smoke and low vacuum
Replies: 29
Views: 5373
Australia

Re: Acrid smoke and low vacuum

Not yet, but I must be getting close ... https://i.postimg.cc/KYZvnr0J/20191110-215641.jpg The clatter returned (so wasn't just the air pump) and became continuous, no longer stopping when the engine had warmed up. Good reason to start the HE upgrade. I'm suspecting the acrid smoke was due to old va...
by lowact
Thu Nov 07, 2019 1:30 am
Forum: Series 3
Topic: XJ12 Engine
Replies: 18
Views: 3046
Australia

Re: XJ12 Engine

I believe HE's first appeared in 1979. It would be useful to understand why change was made, why the engine numbers don’t match? You have preHE heads and, according to my interpretation of engine no’s, a HE engine block. Less issues if I were wrong about this.To double-check the engine block, compar...
by lowact
Mon Nov 04, 2019 12:13 am
Forum: Series 3
Topic: Problem with horn on Moto Lita steering wheel
Replies: 6
Views: 1479
Australia

Re: Problem with horn on Moto Lita steering wheel

I assume "solder" means to braize using a gas torch. Alternatively drill and tap for a screw into the end of the rod that can be adjusted to length and held by a lock nut?
by lowact
Fri Nov 01, 2019 11:30 pm
Forum: Series 3
Topic: XJ12 Engine
Replies: 18
Views: 3046
Australia

Re: XJ12 Engine

Nah, if not HE is not 11.5. And if carburetors not S3 either? Engine number, are you sure that the 1st numeral after the P is a 7?. What car is it in? If E-type, what is the engine number on the plate on the firewall? One explanation, if for some reason the e-type block had to be replaced, and all t...