#1
IP: 67.184.217.215
|
|||
|
|||
Reversing Gear Retaining pin stuck on Adjusting Collar
I have a well maintained 1966 early model A4 which I have had for 45 yrs here in Chicago. In the past I have never needed to loosen the retaining pin nor needed a collar adjustment. While on the hard this year I want to make a one notch collar adjustment [the collar spaces are slightly larger on the early model than on the late model] and the screw pin is STUCK big time. Thinking the pin is doing it's job but maybe "jammed" into the a collar slot.
I have tried a large screw driver as well as a socket/ratchet wrench but am hesitant to apply leveraged force for fear of shearing the screw head or cracking cast parts and vastly complicating what is a simple job. I have done this on friends late model engines and a screwdriver sufficed. Right now it is sitting with PB Blaster applied. The assembly looks good, no rust or shavings etc. I'll use a torch on the cast yoke next but a little constrained on space. Any suggestions on loosening the retaining pin or a special blend of penetrating oil??? |
#2
IP: 32.211.28.40
|
||||
|
||||
No Idea why that screw should be stuck. It's just a split lock washer holding it, and it's not in a corrosive environment.
You are turning it counter clockwise? Lefty loosy... PB Blaster is a good penetrating agent. There are others but I don't know that they're any better. Use of heat is good - try not to start a fire. Have an extinguisher handy in case you do. As I recall, there are two lugs for the locking screw. If the other one is in good shape you can get a bit more 'energetic' with the stuck screw. Worst you'll do is break off the lug. |
The Following User Says Thank You to Al Schober For This Useful Post: | ||
Sam (05-07-2021) |
#3
IP: 134.134.139.78
|
||||
|
||||
I would take this opportunity to buy a impact screwdriver and be gentle with it's application. No 2lb mini-sledge, please, but a dead blow hammer would work nicely.
https://www.harborfreight.com/6-bit-...ase-64812.html
__________________
Thanks, Ron Portland, OR |
The Following User Says Thank You to ronstory For This Useful Post: | ||
Sam (05-07-2021) |
#4
IP: 100.36.65.17
|
||||
|
||||
PBBlaster is good.
Kroil is even better. But best is a 50-50 mix of Automatic Transmission fluid (ATF) and acetone.
__________________
@(^.^)@ Ed 1977 Pearson P-323 "Dolce Vita" with rebuilt Atomic-4 |
The Following User Says Thank You to edwardc For This Useful Post: | ||
Sam (05-07-2021) |
#5
IP: 67.184.217.215
|
|||
|
|||
Thanks folks. I have an impact hammer but initially hesitant to use it but may have too. It's soaking now w/PB and I'll get back to the boat in a day. Hopefully, w/ a little more time & muscle it will come free.
|
#6
IP: 67.184.217.215
|
|||
|
|||
BTW - ronstory's recommendation on the HF impact driver highlights a usefull tool that every one should have - 9 bucks, great value when you need it.
|
#7
IP: 67.169.215.221
|
||||
|
||||
Yes, they are a great, simple device that works amazing well... for no batteries. ;^)
A bit of technique with the impact screwdriver is to find the best tightest fitting bit for the screwhead and then set the driver on it and push it down with your hand only. The screwdriver body (viewed from the 'top') should rotate a little bit clockwise (CW) as it compresses. That means it won't be tighten the screw... which would be bad. If impact screwdriver rotates counter-clockwise (CCW)... it means the mechanism got flipped and you need to set it back to loosen. DAWIKT. One you have confirmed the impact screwdriver is set to *loosen*... place it back on the screw and with your 'non kinetic delivery hand' rotate it CCW until you feel the spring fighting you. Then give it solid rap while continue to keep the twisting pressure up. The screw will break free and you won't strip the head.
__________________
Thanks, Ron Portland, OR |
The Following User Says Thank You to ronstory For This Useful Post: | ||
Sam (05-09-2021) |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
reverse gear adjustments | gilbert landin | Reversing Gear | 12 | 10-17-2013 08:31 PM |
How much force is normal to put into gear? | JimM | Reversing Gear | 19 | 07-24-2012 02:49 PM |
Forward and Reverse Gear Adjustment Issues | CraigRun | Reversing Gear | 12 | 05-17-2012 09:15 PM |
Reversing Gear Adjusting Collar Will Not Turn? | Dearbhail | Reversing Gear | 7 | 11-04-2011 04:01 PM |