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jays55

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jays55 last won the day on June 16

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About jays55

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  • Location
    Bend, Oregon
  • Legal Name
    Jay Marsh

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  1. jays55

    MC454SS Vacuum Leak, or.....?

    Valve spring replaced and problem solved! I used the "rope trick" to keep the valve in place. No other valve/rocker/push rod wear noted. Thanks for all the advice/assistance here. Interesting side note; when the #6 exhaust spring was removed, it was actually broken in two places! For as long as I've owned the car, it has had a slight noise on that side and always felt like it wasn't tuned properly. I've re-tuned it multiple times and checked for exhaust leaks over the years, but never felt it was completely "right". I suspect one of the breaks has been there awhile and the second crack finally gave it away. Car is now running smoother than ever and noises are gone. On to the FGMCC Western on Thursday, with a smile!
  2. jays55

    MC454SS Vacuum Leak, or.....?

    Back from vacation..... Pulled the passenger side valve cover and the #6 exhaust valve spring is broken. Good News, for sure! Relatively easy fix. Never had a broken spring without a significant tick, so I was suspecting much worse. Should be ready for B.C. Meet
  3. jays55

    MC454SS Vacuum Leak, or.....?

    All of the plugs on the pass. side looked the same, that has me stumped! The driver side plugs were also consistent, but slightly cleaner......
  4. jays55

    MC454SS Vacuum Leak, or.....?

    Thanks for the insights. A little more sleuthing today, based on feedback here. I put in a new set of spark plugs and checked the wires. Started the engine. As the stock exhaust manifolds heated up, the #8 cylinder remained touchable, as the others got too hot to touch. Pulled the #8 plug wire and confirmed fire to the cylinder. Looks like I probably have a dead #8 cylinder. UGH! Leaving on vacation shortly and returning with only a couple of weeks before the FGMCC Western Meet. I will pull the valve cover and hopefully find something obvious. If I have to pull the head, not likely I'll have it back together in time for the trip ...... Fingers crossed! Any other insights will be appreciated ...... thanks!
  5. jays55

    MC454SS Vacuum Leak, or.....?

    Any ideas about whether the differing exhaust temps (at the tailpipe) on the passenger side (cool) vs the drivers side (hot) means anything?
  6. jays55

    MC454SS Vacuum Leak, or.....?

    Thanks for the great feedback! I will pick up a vacuum gauge to have on hand. Since I disconnected and plugged all of the vacuum lines and there was no change, I felt an external component failure could be ruled out. The "bent valve" suggestion is interesting. I have always felt a slight miss at idle, but it never felt significant. I just did a drive around the block and I do feel a more pronounced miss/flat cylinder. The issue seems confined to the carb, or engine. But, I don't want to overlook something simple, before going into the engine....... Thanks for any suggestions!
  7. Semi-skilled mechanic looking for some help! Stock 1970 SS454, except for Holley 650cfm carb (#80555-1). I came back from a drive and, pulling into the driveway, noticed the power brakes were hard and the engine was idling rough. Didn't notice anything while driving at speed. Vacuum Leak, right? Went under the hood and checked all vacuum lines to the carb (dist. advance, choke, PCV) and intake manifold (brakes, trans, canister, all attached behind carb). Pulled each hose off and plugged it (1 at a time) and saw no change. Noted that there was vacuum to the brake booster. Also, the PCV valve is pulsating, rather than being pulled open. Low vacuum at idle, right? Sprayed some carb cleaner around the carb and intake manifold, noticed no change. I am hearing a hissing sound from the carb (with the air cleaner off), but don't know if that's normal. A couple of other observations; I pulled the plugs and they all look even. However, I noticed the passenger side exhaust at the tailpipe is cool, while the driver side in hot. There is a heat riser on the pass side, which is functioning. That's about as far as I know to go. I don't have a vacuum gauge, but seems obvious there is low vacuum. Any ideas would be appreciated. Your help is appreciated, in advance......
  8. jays55

    2018 Western Meet Tracking

    Last Name: Marsh First Name: Jay Screen Name: jays55 Name Of Others In Your Party: Total Number In Your Party: 1 Home City & State/Province: Bend, OR Arrival Date: Fri, 8/10 Depart Date: Mon, 8/13 Are you attending the Friday cruise (starts at 10AM): yes Are you attending the FGMCC banquet (Sunday 4:30-6:30): yes Driving or trailering your Monte Carlo: trailer Car Year: 1970 Car Color: black Vinyl Top Color (if any): black Stock/Street/Modified/unrestored: Hotel: yes, host Email Address: jays55@earthlink.net
  9. Registered for the show and hotel booked! Looking forward to getting back together with FG gang...... BTW, I was told only double queen bed rooms left in the group block at the hotel. I reserved a double queen room Fri-Mon. I am on the waitlist for a single bed room.
  10. Bummer, Looks like summer scheduling conflicts will cause me to miss my second Western Meet in a row...... I had booked a room in anticipation, but now won't need it. I will be cancelling my reservation. So, if anyone wasn't able to get a room, mine will be opening up soon..... I will be there with you in spirit and planning to attend in 2018!
  11. Bummer, doesn't look like I'll make the Meet this year . The host event looks great, with lots of old friends and some new Montes to be admired. Until next year.......
  12. Thanks Aaron, sounds great!
  13. Show registration done and hotel reserved! Better get cleaning on the MCSS!!!! Last Name: Marsh First Name: Jay Screen Name: jays55 Name Of Others In Your Party: Total Number In Your Party: 1 Home City & State/Province: Bend, OR Arrival Date: 25th Depart Date: 29th Driving/Trailering: trailering Car Year: 1970 Car Color: Black Vinyl Top Color (if any): Black Stock/Street/Modified/unrestored: Stock Hotel: FGMCC Host
  14. PM sent.......Weeeeeeeeee!
  15. The club handles all vendor spaces....the park is rented from the city for the event.....
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