Alignment-problems Muffler/Y-Pipe/Exhaust

[panhead]

https://www.hydra-glide.net/kb/parts/61 ... 76_154.php

[RooDog]

Callout #10: Spacers.....

[nifty]

Callout #10: Spacers.....

#10 is:
5924B SPACER front muffler clamp 66up

However, not shown in that list, but present in other parts books:
58102-49 SPACER 2 per hanger/3-1/2” muffler P clamp 58-78
57089-71 SPACER 1 per hanger/3-1/2” muffler P clamp 79-84

Also, at front pipe
90908-58 SPACER 69-84 in some parts books, but many Pans & gen shovels have a spacer between both front clamps.

IMO bottom line is: The spacers (or packing washers) you need, are whatever works with your particular pipes, muffler and muffler support to obtain the best possible functional "fit", and let the AMCA judges fret over what they believe to be "correct".

Nifty

[DeltaElite]

I don't have spacers #10. What are they for exactly?

[panheadrider1961]

They go between frame and muffler support tube to align muffler at a slight angle away from rear wheel what you have bolted up now should have a pitch inward toward wheel and possibly may hit swing arm shock mount if hard bump is hit ,when you have it all together and with the right parts out what ever you use yourself to make spacers it should not be straight and will have a right side looking down at wheel pitch or angled degree from wheel and swing arm, in previous post I think you said you took pipe to bend support tube it does have angle in it away from wheel

[Andygears]

Many years ago, my twice rebuilt panhead frame needed that middle bracket which had been removed with the crossover for mechanical brake. Instead of using a flat bar, we used angle iron and cut the extra leg off most of the way down. The angle on the bottom gave more purchase for the weld and made the bracket more rigid.

Andygears

[DeltaElite]

Since my Bike is quite far away from me currently:

Does anybody know the diameter of the frame just next to Squish bracket?

Instead of welding the frame (I don't want to weld on the frame and spoil it) I'm thinking about attaching a frame-tube p-clamp to it and weld a piece of flat-steel onto the clamp and drill a hole in the flat-steel to attach the squish.

Would a 65513-58 fit at that position?

[nifty]

Swingarm frame tube is 1.125".
So yes a 65513-58 clamp will fit where you propose.
However, IMO whilst your proposed "repair" will be better than the current nothing, as an exhaust support it will still be inferior to OE tab welded to frame.

BTW, in my experience, Pan & early Shovel FL support tubes and mufflers are parallel to motorcycle center-line and rear wheel, but supports droop down slightly, as I mentioned earlier.
Due to your particular pipes & muffler, if you have to mount muffler non-parallel to C/L in order to gain pipe joint alignment, so be it.

Droop exaggerated in sketch.
in this instance, 2 x spacers used at front muffler clamp with 5/16" x 3-1/4" bolt through clamp, both spacers and support tube and finally nut & washer. No spacers between support & frame.
Some installations muffler mounted further forward with longer clamp bolt also through frame. (like your first photo)
Your final installation may vary.
Nifty

[panheadrider1961]

where it was cut should be enough to weld back on to 3 tack bumps on pipe side and 2 on back with mig welder should be good ,wrap wet rags either side to stop heat rush and burn paint , looks like 3/4 wide 18 gauge 4 inches high with 5/16 hole and black spray paint gloss good luck

[Robbo]

This is thread is really useful for me as this is next up on the list.
I was in the same no squish pipe tab place a while ago. The folks on this forum came through as ever. Here is the link you may find it helpful too.
squish pipe mount
Check the second page there is a really useful pic with measurements added (thanks again all)

[Panacea]

IMG_0180.JPG (58.37 KiB) Viewed 531 times

IMG_0414.JPG (59.81 KiB) Viewed 531 times

The clamp sits just below the flex tube on my 64,

[nifty]

Very nice!
Nifty

[nifty]

This is thread is really useful for me as this is next up on the list.
I was in the same no squish pipe tab place a while ago. The folks on this forum came through as ever. Here is the link you may find it helpful too.
https://www.hydra-glide.net/phpBB3/view ... hp?t=15596
Check the second page there is a really useful pic with measurements added (thanks again all)

Robbo
Re link
Before you make an oversize, super strong tab for squish pipe (like the OP did), consider that one day, you might want to dismantle oil pump, without removing engine.

BTW, 65up with primaries dictating trans position, one can use a 65up right side FLH passenger footrest mount to accurately locate original hole position for squish pipe, footrest mount attaches to front 2 trans cover studs and has a 3rd hole which picked up squish tab, passenger mount gives you fore & aft, plus height, transverse you still have to make a judgement call, juggling oil pump interference with pipe being too far out. When you are happy, can even use the footrest mount as a welding jig, to get a good tack.
Nifty

[Mongrel505558]

Just dealt with that tab on my '68 last weekend while replacing a leaky Mylar oil pump cover gasket with a dollar bill gasket. I had to bend it outward about 1/8" so I could get the lower right pump bolt head past it. Easier than removing the primary drive and case, clutch, starter, etc., and motor mount bolts. Happy to report leak is gone.

[Robbo]

This is thread is really useful for me as this is next up on the list.
I was in the same no squish pipe tab place a while ago. The folks on this forum came through as ever. Here is the link you may find it helpful too.
squish pipe mount
Check the second page there is a really useful pic with measurements added (thanks again all)

Robbo
Re link
Before you make an oversize, super strong tab for squish pipe (like the OP did), consider that one day, you might want to dismantle oil pump, without removing engine.

BTW, 65up with primaries dictating trans position, one can use a 65up right side FLH passenger footrest mount to accurately locate original hole position for squish pipe, footrest mount attaches to front 3 trans cover studs and has a 4th hole which picked up squish tab, passenger mount gives you fore & aft, plus height, transverse you still have to make a judgement call, juggling oil pump interference with pipe being too far out. When you are happy, can even use the footrest mount as a welding jig, to get a good tack.
Nifty

Hmmm, given the way this has gone so far, I reckon I will need to remove the oil pump when I fire it up for the first time.