Skip to content
View in the app

A better way to browse. Learn more.

Trials Central

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Montesa 248 Coil Relocation.

Featured Replies

Hi everyone,

Looking for some simple electrical knowledge please.

I want to put the condenser under the tank out of the way of the heat as the many threads suggest.

What do you connect the red wire from the condenser to, does it get earthed to the coil/frame mount, or to the spade connector off the coil?

Thanks.

  • Replies 36
  • Views 8.1k
  • Created
  • Last Reply

Top Posters In This Topic

Most Popular Posts

  • Good luck Dave its the only way to go, I just found out that the plug that was in my 247 has failed after about five hours! I was set to strip a perfectly good carb until I did one final check on the

  • Thanks B40rt, Tried everything, checked everything twice and all appears correct apart from the Amal carb. So to all you followers, I've bitten the bullet and ordered a Mikuni replacement. Hopefull

  • Chappo, Be sure to ground the condenser body. I personally like the coil mounting bolt. Larry

Chappo, Be sure to ground the condenser body. I personally like the coil mounting bolt.

Larry

  • Author

Thanks lads, just for clarity I already have a wire from the stator connected to the spade connector on the coil, do I double these two up?

Thanks..........great help.

Just splice the stator wire and the condenser wire together in one spade connection and attach it to the coil.

If it could be of any help, I find that the condenser we have used over many years,

1968 302 Ford.

Larry

Chappo, Have you had any luck? Please give us an update as it would be helpful to somebody down the road.

Thanks Larry

  • 4 weeks later...
  • Author

Hi lbhbul,

Sorry no nearer only due to lack of time, it's a project that's get attention when I'm free.

Hopefully going to get at it over the next week.

One further question though, the counter shaft on the opposite side of the crankshaft to the flywheel, is the thread on the nut normal anti clockwise to release, or clockwise, just need to replace the crank seal.

Thanks, will let you know how the electrics go.

Dave.

Dave; Thanks for the reply and sorry about your time constraints to have a bit of fun.

I don't know but have to assume 247??

Cant remember but I assume the drive side threads are anti clockwise, I do recall the drive

gear being a bother & requiring a special puller, there was a recent thread showing this

puller.

Found it! Montesa 348 Success Story ref. feetupfun post

Help; johnmartin247, wobbler, kingscorpion & others.

Regards Larry

Edited by lbhbul

  • Author

Hi anyone following this, the primary drive thread is a conventional clockwise to tighten, anti clockwise to loosen.

Tried a normal Sealey gear puller to remove the primary drive, Not A Chance, snapped very early, .....................seen the pictures on here of an 18 ton puller latched on and nothing's happening.

Going to MachineMart tmrw to get a hydraulic puller and see who gives in first.

By the way, the ignition tips helped, the stator was cream crackered so sent it to West CountryWindings and it came back in fine form , the spark is a belting blue colour, but on starting her she coughed and spluttered and blew out blue smoke and was unresponsive off the throttle.

The ignition timing is bob on and the carb seems ok, so I'm assuming it's the primary drive crank seal that's perished and it's drawing in oil and air and that's the problem, anyone had a similar problem ???????

Chappo,

The last issue I had with the primary gear was when main bearings were the issue, had to be replaced;

puller not available. Used torch heat and rapped it sharply,sorry design popped off.

Do not advocate this plan, but was advised by owner, it has to come off.

Much better to come up with puller as per my above post.

Good Luck Larry

  • Author

Well............................ , puller, lots of heat and a dead blow hammer a really Big Bang and it travelled 8 feet across the garage when it gave up. Had to replace the stock Sealey bolts in the puller with high tensile ones as the originals gave way at half pressure, it was like being under fire.

Really would advocate safety glasses and fast footwork to anyone contemplating this task.

New seal installed, just letting the gaskets set before filling it with oil and seeing if all this work has cured the problem.

Thanks for all the help guys, really appreciated.

Dave.

Edited by chappo

Dave, So happy for you, those crank gears & the at least for all I know counter shaft sprockets can really give you fits.

Much prefer keys & splines.

Best of luck. Larry

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.