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  • Users: paulmars
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  1. paulmars

    Protect house from high winds

    1953 cmu house has a strengthened attic including rafter & coller ties & gable supports & 600 mph Simpson hurricane ties \ straps. HVHZ hidden fastener metal roof installed to, but better then the HVHZ code. Do I still need to strengen windows ? Im only interested in structural damage to house...
  2. paulmars

    Automotive hydraulic brakes

    regarding brake lines automotive. My understanding of hydraulics and how brakes work is that when you release the pedal it stops applying pressure to the brakes thru the hydraulic line, but it does NOT suck fluid back. so as I see it closing the bleeder valve between each pedal push is not...
  3. paulmars

    who makes the best strongest rubber oil line automotive hose? Best clamps?

    who makes the best strongest rubber oil line automotive hose? Best clamps?
  4. paulmars

    Basic hose question

    I have an automotive application. OEM "rubber" hose on this engine often fail. After several years the manufacturer replaced it with solid line. Earlier year owners often swap out the rubber for the later year solid. This is too involved for me right now, so i was just going to get the best high...
  5. paulmars

    compatibility question

    Im installing a galvalume metal panel roof. Supplied steel screws are used to hold the panel clips to the roof wood deck. Some of the wood is rotten and/or termite damaged. So, we have been replacing that with treated wood. I just heard that galvalume is NOT compatible with treated wood. Several...
  6. paulmars

    Im looking for the strongest concrete screws?

    for outdoor humid, hot central florida. Strong structural concrete screws. Im attaching simposon H10S and LGT2 straps to my rafters and cinder block walls. Im using simpson screws to attach to the rafters, however simpson makes no outdoor concrete screws and has no suggestions. So, Im looking...
  7. paulmars

    rafter ties

    Im not sure if im in the right forum. maybe should be Building engineering Forum. Im planning on installing rafter ties in my 1952 cinder block home. It has no rafter ties at all. Every time Im in the attic and look around, I wonder what holds up my roof. The ceiling joists run parallel to the...
  8. paulmars

    powering up old unused electrinics equipment

    I remember in electronics school in the 1980s we learned that the best way to damage a very old piece of electronic equipment was to power it on with full voltage. After a long time with no power caps go to zero ufd, which will pass the full voltage and burn out other components. Something...
  9. paulmars

    rafter cable ties

    I cant understand this math. ive been over and over it. Each time I get a little further, then I loose it again. ref: How to calculate rafter thrust? -Help! at http://www.eng-tips.com/viewthread.cfm?qid=105386 Can someone help me figure cable load? 4/12 24" rafter spacing. No rafter ties...
  10. paulmars

    looking for rafter straps

    I need to secure these rafters to the cinderblock top plate. They are just toe nailed in now. I want something stronger that i can screw in w/o removing the planking. Any ideas? I might install rafter ties, but Im looking for alternatives. pics...
  11. paulmars

    Nidec Sole ele motor questions

    I found several Nidec and Sole websites. None responded to my questions. I did find a few dealers, who responded, but dont have answers to my questions. These dealers suggested several of the Sole and Nidec sites and they dont know why I get no response from the sites. I want to get a wiring...
  12. paulmars

    How to install rafter sister?

    If I make it the same length as the existing ones, it wont fit. There will be no way to install it w/o removing the roof plankings. My only idea is to make it shorter and cut the piece that sits on the block wall, cut the angle 1.5" higher. This will allow me to slide it in further, then lift...
  13. paulmars

    roof structural advice please

    house built 1952. A few rafters cracked and one is split. Im considering adding supports. Advice? tks, pa
  14. paulmars

    need help fixing Bodine SCR FPM-850 (0850) AC to DC mtr speed control

    I have a good one and a broken one. The attached motor shorted and broke the 0850. I have a dvm. Neither fuse in the FPM blew, but the shop 20a breaker tripped. Two parallel 0.33 ohm resisters were opened, so I replaced them, but that did not fix it. I have looked high and low and cant find a...
  15. paulmars

    What is this? Its from Hammond machinery Builders 1958

    I cant find any info on it, except the patent, here: http://www.freepatentsonline.com/2919522.pdf tks, >p
  16. paulmars

    wire diagram for a leeson-taylor mtr.

    The mtr plate says "connect for wiring diagram supplied with motor". I dont have this. Can anyone help me? model A4S17DR46B OR A4S1-DR46B. Orange wire marked RB, White marked R21, Black w/White stripe no marking, Green w/Yellow stripe marked R14. Its single phase. tks, paul
  17. paulmars

    1959 compressor help

    I just got it. I need some help before I plug it in. I can post pictures. It looks like a switch and two wires coming from it, but Im not sure. Also there is an oil fill, but no level indicator. It has not been run since the 1980s.
  18. paulmars

    electric compressor 1959 need help

    If this is wrong forum, sorry. It was removed from elevator shaft in the 1980s and has been sitting in someones garage ever since. I'm told it was functioning when removed. I dont want to just plug in it. i'd like some help first. I have pictures and specific questions. Is anyone interested in...
  19. paulmars

    need to replace oipto-sensor on AC board

    Is this the right forum or should I go to "Circuit Design Forum"? The honeywell st9103a got fried when home was hit by Lightning. I believe its one of the two ICs (opto-sensors) on the board. Its the only parts that dont have generic part identification. Honeywell was NO help. I want to replace...
  20. paulmars

    how to identify component needing replacement

    honeywell central AC/heat Electronic fan timer st9103a 1036. Honeywell is no help. They want me to buy a new board for 150$. I believe its the IC on the board that's bad. I have not been able to find a schematic of this board. The IC is labeled: L 9948 814 (large dot) Y I've tried a few on line...

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