| Author | Message | ||
| Carmine Nicoletta (Ncarmine)
Junior Member Username: Ncarmine Post Number: 62 Registered: 6-2002 |
Here's a follow up: 1. Measured the thickness of the base of the knob and cut the steel pins to be 1mm shorter so they wouldn't puncture trough. 3. I tried to magnitize the punch so it would hold the pins as I lowered each one into the drilled tab. 4. Glued the broken tab and left to cure. I made sure the pin holes didn't get clogged with glue. 5. Filled each pin hole with glue, and tapped each pin lightly until flushed with tab.  | ||
| Carmine Nicoletta (Ncarmine)
Junior Member Username: Ncarmine Post Number: 61 Registered: 6-2002 |
Thanks to Verell for suggesting the steel pins and SureHold Plastic Surgery. The knob is as good as new.    | ||
| Tom Bakowsky (Tbakowsky)
Member Username: Tbakowsky Post Number: 270 Registered: 9-2002 |
My knob is fine | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 608 Registered: 5-2001 |
Carmen, OH,(DUH) overlooked the red arrow. I was looking where the pencil was pointing. I know what's broken now, it's the little tab inside the knob that separates the contacts when the knob is twisted. Reinforcing it could be done, but it'd take making some special tools. HOW ABOUT A NEW KNOB: Here's an offer: Send me your knob & the tab. I'll re-attach the tab, use the repaired part to make a mold & will return a new knob to you. That will give Unobtainium Supply another product & you get a new knob with a full strength tab. | ||
| Carmine Nicoletta (Ncarmine)
Junior Member Username: Ncarmine Post Number: 60 Registered: 6-2002 |
Verell, Thanks for the tips, but drilling into the body of the switch knob seems tough. It's only 1/2 in in diameter, and almost 3 in deep. Not much room to work in... | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 607 Registered: 5-2001 |
I used the liquid. I suspect you'll need to reinforce the bond tho as there's sideways pressure on the tab. You might try reinforcing the tab with a pair of steel pins like I reinforced my wiper switch. I used steel sewing pins cut to length & then the ends deburred with something like a file or honeing stone. BTW, some HW stores & welding supply shops sell small diameter drill bits & a pen type bit holder for drilling out the jets in oxyacetylene torch tips. Drill a pair of small diameter holes just slightly larger than the pin's diameter thru the top of the tab & into the switch body. Insert the pins thru the tab and into the joint. Leave a small gap between the tab & the switch body. Put a drop of glue into the gap & press it together. BTW, I found that the plastic surgery took a surprising amount of time to cure. May be 3-4 minuites. The pins will help keep the bond area from shifting while it's cureing. It wouldn't hurt if you etched the pins with phosphoric or muriatic acid to give some texture for the glue to grab onto. | ||
| Paul Hill (348paul)
Junior Member Username: 348paul Post Number: 111 Registered: 12-2002 |
Verell, Have sent you an email with info that should help! Paul | ||
| Carmine Nicoletta (Ncarmine)
Junior Member Username: Ncarmine Post Number: 59 Registered: 6-2002 |
Verell, The diameter of the ball is 5mm. Which SureHold Plastic Surgery did you use? The liquid or the gel? I'm trying to bond a small plastic tab that broke off from the inside bottom of the plastic handle as pointed by the red arrow. | ||
| Ron Shirley (Easy_rider)
Member Username: Easy_rider Post Number: 303 Registered: 12-2002 |
Verell, no its not a t. I thought it would be obvious why I want you to buy a Mondial..... if you had one you would begin making parts for it.  As it is, it seems like the 308 guys get the benefit of your efforts. Hope you make it out here. | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 605 Registered: 5-2001 |
Paul, Thanks for the offer, It's greatly appreciated. I may need your help with the springs. If I measure the spring's length, diameter & wire diameter will this be enough for you work with? I don't have a tool to measure the spring constant, but could make something if necessary. I have 1mm thru 4mm stainless steel balls sourced: www.smallparts.com I haven't had a chance to mike the column switch detent balls, but by eye they're ~2mm & ~3mm. If they're fractional mm, then I may be able to use one of the fractional inch meas. based balls. Ron, Nice Mondial Spyder (is it a T?) Thanx for the invite, If I'm ever going out there I'll take you up on it. Now, I'm missing something, why do you want me to buy a Mondial? | ||
| Ron Shirley (Easy_rider)
Member Username: Easy_rider Post Number: 301 Registered: 12-2002 |
Hi Verell, I had read those threads when I first joined Fchat but I did not remember that you were the genius behind the work in them. Now, if I could only get you to buy a Mondial... If you ever make it to Southern California I guarantee that we will have a welcome drive for you. You are such a help to all the members of this forum. Best regards, Ron | ||
| Paul Hill (348paul)
Junior Member Username: 348paul Post Number: 104 Registered: 12-2002 |
Verell, As Ron says - you are an inspiration. I would like to second that! I read that you had problems finding springs & balls. Have you sourced them yet? Being the Owner of a Machine Shop here in the UK, if I can assist you with anything you need (within reason!!) or have problems sourcing, please feel free to email me any time. Keep up the good work. Paul | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 602 Registered: 5-2001 |
Thanks Ron, You might like these follow-on posts: UNOBTAINIUM MANUFACTURING PROGRESS http://www.ferrarichat.com/discus/messages/112/189905.html Unobtainium: Ask & Ye Shall Receive http://www.ferrarichat.com/discus/messages/112/202534.html | ||
| Ron Shirley (Easy_rider)
Member Username: Easy_rider Post Number: 294 Registered: 12-2002 |
Verell, you are an inspiration. I read the thread where you described all your efforts to repair then mold a wiper stalk. I have much admiration for you. Best regards and keep up the good work. Ron | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 600 Registered: 5-2001 |
Carmine, I used Surehold Plastic Surgery, a super glue varient to repair my wiper stalk last summer. It's still holding. I used some steel sewing pins to reinforce it. I tried several adhesives before I found one that would bond to the column switch plastic. Your column ring nut tool is in the thread: http://www.ferrarichat.com/discus/messages/112/107784.html I bought the Plastic Surgery from a TrueValue Hw store. If you can't get a strong enough bond, I can mold a new piece on the stalk end. BTW, would you kindly measure the diameter of the little ball for me? The 308 switch I'm using as a master to make new stalks didn't have one.(At least I'm pretty sure I didn't loose it when I took the stalk apart.) | ||
| Carmine Nicoletta (Ncarmine)
Junior Member Username: Ncarmine Post Number: 58 Registered: 6-2002 |
The left column switch for the pop-up head lights has an internal plastic tab used to separate the copper contacts as one rotates the knob. If this tab breaks, you cannot turn the lights off because there's nothing to separate the contacts. You either have to disconnect the battery terminals or unplug the relay. The question is what adhesive to use to bond the broken tab back to the body of the switch. I'm looking for a bonding material which can tolerate the torque and not be able to shear off. Old thread: http://www.ferrarichat.com/discus/messages/112/78083.html?1026739031#POST66484  |