CowboyBob

Can't help you with the serial #

This is a Singer household machine,model #15-88 .

It won't siphon with nylon or polyester ,just cotton thread.

The pulley should slide off by putting a wrench or screwdriver behind it & prying alittle.

This is an older machine I'll need a pic to help you as Juki bought Nakajima yrs ago.

Set the needles side by side,you'll notice the 135x17 is approx 1/4" or 6mm shorter.Lower the needlebar all the way down,mark it right at where it comes out of the bushing.Open the side cover & loosen the set screw @ the clamp(while holding onto the bar) & lower it the 1/4" & tighten the screw & give it a test sew.

Get some large adjustable pliers & grip the pulley in the groove.OR you could put a belt in the pulley & hold on to it real close to the pulley while trying to loosen it.

Start with one around 2&1/4" long.

One more thing to check ,if you loosen the set screw that holds the needle in how much play does the needle have left to right? Sometimes after years of changing needles & tightening the screw it enlongates the hole that the needle fits into & can cause it to hit on the left.

Try pushing the needlebar front to back to see if you have any play,if so look underneath @ the reverse parts while pushing it front to back & you'll see what you need to tighten up.Some of these had a feed dog with a round hole,there is a longer slotted hole feed dog available (which we stock) that might help too.

It's usually not real easy to get out because of the old oil,lint & dirt & sometimes corrosion buildup that will require you to sand the shaft (as much of it as you can) & you will have to keep sanding it mores it slides out more .Then try the new shaft on the bearing ,pulley & walking foot cam before trying to re-install (it require some sanding for the parts to fit) it will make it alot easier for you.

I just measured the difference a M bobbin is .80 thinner,so he could put a piece of cutout business card thickness in the bottom to prevent the bobbin from backlashing if he had to.

You can take your tension spring off & stretch it alittle to make it stronger.FYI machines with front loading bobbins never give a good stitch esp. leather,I've seen this happen on Adler 105's that have the front loading bobbin.machine will sew better w/a side loading bobbin.This machine was made to sew cloth,canvas or vinyl where it'll make a better stitch.

Here's a pic of my 34-11 & yes it is the HD model,the bobbin is same diameter but slightly wider than a standard M bobbin.It can use real heavy thread since it has the 45K upper arm on it,some just had the smaller 16,17 class upper arm.Parts for it will be almost impossible to find.The shuttle looks like but is larger than the 30-7.

I used to buy it @ Home Depot.I don't know if they still have it though.

Your Welcome,I did notice a couple of groups for the Tin Lizzie on Facebook that you might want to join.

I wished I could help you,but we never have sold or dealt with any quilting machines.You might want to Google for dealers to find any parts you might need.

Yes,when the outside foot goes back (with the feed dog underneath pulling the material) the inside foot lifts up & the when the inside foot goes down the outside which is spring loaded moves foward to make another stitch

Yes,it's a 132K6 since it has the vibrating foot.

Good use of a an old machine,guess I better stop scrapping them!LOL

Ok ,Is there any play in the gears that drive the hook? And have you tried timing it @ 2.2 rise?

You might want to check the small finger that keeps the inside of the bobbincase from turning,if it is set too close to the hook it can pinch the thread & prevent it from passing through.Run the machine by hand & watch it as the thread passes through this part.

How about 69?

Try size #92,138 might be too large for this machine.

Yes you can look underneath or open the cover on the top rightside.