Location: NYS
Posts: 2,511
My VIN: 4519
Location: NYS
Posts: 2,511
My VIN: 4519
So far nothing stops the hiss. New diaphragm hisses & whistles, cleaning & polishing seemed to help a little.
FWIW, I don't think the new diaphragm is a proper fit. The old one had raised "keys" the same size & shape as the switch....the new one has "keys," but three are not the same size & shape.
I tested with smoke and can see it getting sucked into the edge of the diaphragm.
I put everything back together....aggravation for a different day.
Probably sell the new diaphragm.
Sent from my LGL164VL using Tapatalk
Maybe try putting a very thin washer under the two plastic prongs to shim it tighter. You can notch the hole to shape with a square/box file.
If you're lucky, you can locate a horseshoe clip to fit. (It's brittle -- I'd try aligning it all up and press the plastic through all at once, instead of slipping it under the plastic prongs. Wash the back side of the diaphragm (for grip) and lots of silicone on the maze.)
Location: Northern NJ
Posts: 8,576
My VIN: 10757 1st place Concourse 1998
You should not be having so much trouble with this. Maybe somehow you don't have the right switch or someone messed up the parts. One thing you could do is send the switch out to a Delorean vendor and ask them to assemble it for you. They would immediately see if something is not right knowing exactly what it should look like.
David Teitelbaum
Location: NYS
Posts: 2,511
My VIN: 4519
I was thinking I needed it tighter, and tried "elongating" the spring early on. I'll try the washer idea on the next go-around.
I agree, it's a pretty simple task and I shouldn't be having such a hassle. I like the idea of sending it to a vendor for a more experienced set of eyes (and better part-swapping resources.) I don't need help assembling it, though....every part of it is keyed, it seems pretty foolproof to reassemble.
I have an odd thought/silly question: is it possible that too much vacuum could be causing the issue? I put a gauge on my manifold, it's at the high end of the scale/
Location: Northern NJ
Posts: 8,576
My VIN: 10757 1st place Concourse 1998
The motor can't produce "too much vacuum". Maybe take a ride to PJ Grady with it.
David Teitelbaum
Location: NYS
Posts: 2,511
My VIN: 4519
Location: Northern NJ
Posts: 8,576
My VIN: 10757 1st place Concourse 1998
Then either have him do other stuff too or just mail him the switch. I would call first.Or wait till you have other business in the area nearby.
David Teitelbaum
Location: NYS
Posts: 2,511
My VIN: 4519
Today I picked up my latest DeLorean purchase. The owner had a small parts stash, and coincidentally it contained one of these: