Hydroboost problem

[Pops68]

OK, so I thought I had everything for my hydroboost swap...hose kit from Hydratech, 2003 Mustang Mach 1 hydroboost/MC.....assorted odds-n-ends.

I have been tinkering with the stuff in my pole bldg. off and on. Today I went to remove the low pressure return nipple from the hydroboost....what a bear to do. Now, I think I screwed up royally....it seems to have a tapered thread that NAPA couldn't find and the local hardware couldn't match either. Next stop was a Ford dealer....STICKER SHOCK...$149!!!!! just for the straight/screw in nipple!!!!! It's no longer made, either. That is more than I paid for the entire hydro set up (inc. MC, hoses, prop. valve, etc.).

My question after all this is: can I JB weld the nipple into the HB??? Or, should I use a tap and re-thread the hole and get a new fitting???

I wanted a 90 degree fitting to begin with (that is why I tried to take the straight nipple out).

Since it is the low pressure line, I was hoping the JB weld would work vs. re-tapping and forgetting the 90 degree fitting.

What should I do???? Buy another hydro??? or one of the above options??

Any input is welcome....thanks in advance!!!

Pops

 

[Hozr]

Hydroboost OUTPUT should be M18x1.5 O-Ring

Search 18x1.5mm fittings on summit

try this

http://www.summitracing.com/parts/RUS-648080/

 

[toddz69]

Low pressure fitting should be 5/16-24 threads. Are they bunged up enough that you can't re-tap? I'd re-tap if possible (keep everything clean) and just put a new nipple on it.

Todd Z.

 

[Pops68]

ToddZ: Not sure how bad the threads are...crossthreaded??? The fitting did look tapered, too, even the guy at the Ford parts desk thought that.

I did see a 5/16" X 24 90 degree on Hydratech's site for $22 + S/H. If that thread size is correct, I may try NAPA or another local store again (O'Reilly's, Autozone, Advanced).

On this Hydro, there is a block on the side with the low pressure fitting and 1 high pressure fitting. I have alreday been able to remove this. I would be concerned about getting metal filing inside this block when re-tapping it. What would be the best way to flush it out after tapping to ensure no filings are left behind??

Pops

 

[red hot71]

I think you need to verify that its metric as apposed to American. I have a 96 mustang HB and its American thread sometime around 2000 I think they switched to metric.
The factory nipple you're talking about, I think it's a banjo type fitting I was able to cut the factory hard line long enough (7/8")to get my flaring tool on and create a bubble end and that's my fitting for the return. 5/16x24 sounds right thou if its American and mine not tapered.

 

[toddz69]

ToddZ: Not sure how bad the threads are...crossthreaded??? The fitting did look tapered, too, even the guy at the Ford parts desk thought that.

I did see a 5/16" X 24 90 degree on Hydratech's site for $22 + S/H. If that thread size is correct, I may try NAPA or another local store again (O'Reilly's, Autozone, Advanced).

On this Hydro, there is a block on the side with the low pressure fitting and 1 high pressure fitting. I have alreday been able to remove this. I would be concerned about getting metal filing inside this block when re-tapping it. What would be the best way to flush it out after tapping to ensure no filings are left behind??

Pops

Somebody posted a link to a fitting on ebay in another thread the other day for much less $ than what Hydratech charges. Red Hot 71's post clued me in that your fitting may indeed be different than what I'm telling you. I've worked with Chevy car and truck hydroboosts and various Ford hydroboosts but not the Mustang units. They're a different animal.

As for tapping, it can tricky. You can smear some grease on the tap while threading to capture some of the filings that way. Try to have the unit turned down as much as possible to have gravity be your friend and then go in with a Q-tip or something similar afterwards and carefully swab out anything that's left. If you could also pour some p/s fluid into the input port and work it though that would help too. When I get units from the junkyard there's often fluid in them that I have to work out and it nearly always comes out the low pressure fitting when I actuate the pushrod.

Todd Z.

 

[Pops68]

thanks to both redhot 71 and todd for the responses. would like to know the fitting on ebay to check out...don't know how to 'phrase' the description, tho.

Thanks, Pops

 

[toddz69]

First post in this thread has a link to it:

http://classicbroncos.com/forums/showthread.php?t=219410

Todd Z.

 

[Pops68]

Stopped at a 'hardware supply store' today....a little bit of everything. Couldn't figure out the size of this low pressure hose-barb yet....5/16" X 24 wouldn't work. Decided to ask the counter guy for help. In about 10 seconds, he says "5/16 X 24........... LEFT HAND THREAD!!!!!!

Bought a left hand tap of this size and re-tapped when I got home.

Unfortunately, the male threads are too short to grab the re-tapped threads of the HB

I guess my next option is to re-tap to a larger size...3/8" X 24 and find corresponding barb.

What size drill bit would I use to start this process????
5/16
11/32
23/64

HELP ME!!!!

Pops