Hello Jim, from Google, an XK 4.2 engine weighs about 275 kilos with flywheel and manifolds. so that stand will be fine. Alec Hi Alec i take your point about the centre of gravity but at 270kg as you say the 450kg should be ok. NB Can the rear seal be changed in situ with the gearbox out of the way...

Can anyone tell me the approx/ weight of a 3.4 s type engine i am embarking on my winter project to change the rear oil seal hence engine out and i am not sure what size engine stand to buy would a 450 kg stand do.
cheers jim

I have just repaired a broken spade connector to the rev counter generator the problem is i am not sure i connected the terminals to it correctly because it now does not work i have tried changing the terminals around to no avail could i have damaged the rev counter by a wrong polarity connection. c...

Hello Jim, was it running without misfiring on the old distributor, if so i suggest refitting it to see if it runs on all six again, which would indicate the electrickery is the problem or not? Alec Hi i sent my 123 dizzy to a company called Albertronics in the Nederlands a chap called Frank a firs...

Hi John put a new cap and rotor arm this morning instant success all 6 firing perfect until it reached running temp/ turned it off for 5 min's restarted and 3 and 5 are back misfiring it,s not the leads it,s not the coil or compressions i am thinking that the 123 p c board is breaking down under hea...

Hi i have a misfire on cylinders 3and 5 on my 3.4 the head has been refurbed and skimmed i am not sure wether it is compression or th 123 dizzy i have taken comp/ readings and the lowest is at 120 and the highest is 130 however the two misfiring cylinders are at the mid range, as it is 8 to 1 and ac...

I am pleased that the misfire is not on cylinders 3/4, that spells trouble --think about it! I would suggest you enquire as to what correct/ ideal compression figures should be. Also the methodology used to achieve the results. Don't want to teach Granny to suck eggs and all that Oldtimer The corre...

Hi your right about the rotor arm i did not like it so i fitted the original the compressions are all at 125 and 130 i have one low at 122 but it is firing fine the cylinders that are missing are 3 and 5 next to each other on the dizzy ? a bit suspect i believe may buy another cap and rotor arm. che...

Alec you are so right 123 does only send the signal to fire and the problem is beyond that i have tested the coil all seems ok on the ohms test compressions are not great however they are all within 5 psi of each other so no reason for 2 to misfire i have a new cap fitted and changed the ht leads pl...

Hi i have a 3.4 s type fitted with the 123 electronic ignition i have a misfire on 2 cylinders i have tried all routes to no avail however on taking the distributor apart the PCB has corrosion on some parts of it i did have a hose failure just before this problem arose from the rear of the water pum...

Hi i have the 123 system fitted to my 67 s type and it is really clever it has the advance curve to suit your engine and it also has the cacuum advance as well led inside the distributor for perfect timing.
cheers stiky

HI i have changed the dash bulb's in my 67 S Type to LED fantastic transformation i can now see all gauges in poor light and no exess draw on the dynamo in fact less and no heat generated either. NB Positive earth also. Supplied by 4 Sight Lighting the guy has developed his products with his own mon...

Thanks every one for all the info managed to get a second hand one from e bay that came off a porsche it arrived to day fitted and working fine.

Hi i am looking for a vacuum operated heater valve for a 1967 S Type S N G do not do these valves anymore however they have give me a part no JLM 1311 which is the new part no for a replacement valve can anyone shed some light on this valve or were to buy it.
cheers jim

Thanks every one for the help have now sorted the problem it was 2 fold 1 the new inlet manifold gaskets supplied by SU were too big hence letting air in and 2 the distributor clamp was not tight enough and i must have moved it whilst re fitting the carbs hence the timing was out a little.
cheers jim