1927 Jowett 7

[steve51800]

Hi,
New to the forum, have come here as need a bit of advice. We are currently recomissioning a 1927 Jowett 7 for a client, the vehicle was restored several years ago and has stood dormant since with very little use.
Looking for a Distributor cap and rotor arm, as these have both been repaired at somepoint in the past and show signs of tracking/arcing,
Also the Drivers side plug seems to be oiling up more than the Passenger side when running, though it is clearing with running. Would that be a likely side effect of oil seepage whilst stood?
Look froward to any or all thoughts.
Regard's
Steve

[Keith Clements]

Hi Steve,
Welcome to JowettTalk!
It may be worth you or the owner joining the Jowett Car Club not only to get parts but get more technical help and social contact.
I expect a pre-war expert will soon answer your questions.
Assuming you mean oil , rather than soot, then my guess on the oiling up of a plug is worn valve guides, in the absence of any other symptoms. If the plug cleans itself up during a run then it is unlikely to be worn bores as the plugs would become black.
Since you say the car is misfiring then the oiling could simply be oil past the bores not being burnt off during the start up phase.
Old ignition electrics are notorious for losing spark. But also I recently went to help one owner who had two out of four faulty (Champion) plugs and they were new! I recommend new ignition leads as they fail frequently. New rotor arms can also be faulty, particularly if of oriental origin.

Get a strobe light (or oscilloscope) on the beast and make sure all sparks are even, regular and consistent.

[Jack]

Hi Steve,

Welcome to the forum.

I would reccomend you (or the owner) contact Jowett Car Spares on the rotor arm, I suspect they may be able to help with that, and may be able to help with new distributor caps. They will only sell to club members, so worth the member joining up to get technical support as well as access to spares.

The prewar specialists will be along to advise on the oil issue I'm sure, but good to see another car getting back on the road.

Jack.

[steve51800]

Thanks for the reply's its a large learning curve on something like this when used to 1960's stuff.

[ian Howell]

Steve: -

I do not qualfy as an expert but I have spent some time repairing my 1930 7hp and with it being on the road for just over a year, I may be a little further up the learning curve!

I think any oiling up problem is unlikely to be valve guides as I think the 1927 engines are the same as mine with exposed valve springs and therefore no connection with the crankcase. It is also necessary to periodically apply a few drops of oil externally for this reason.

My exhaust is also very sooty but this may be due to not running the car for any great distances (about 12 miles maximum so far). Oher than that I suggest experimenting with the mixture. There are technical notes on this website to give you guidance.

Beyond this, I hope you may soon get responses from Tony, Mike and/or George (you will know who they are if/when they reply) and they have far greater depth of experience with these vintage engines.

Keep in touch though, there will be a number of members watching even if they don't offer opinions or advice!

Any chance of a picture? Which part of the country are you in? UK or overseas? There may be a member near you who could help/encourage!

Anyway, welcome aboard.

[Tony Fearn]

We are currently recomissioning a 1927 Jowett 7 for a client.

Hello Steve.
Has your client joined the Jowett Car Club yet?
Tony.