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05-01-2006, 04:05 PM
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#1
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Join Date: Aug 2004
Location: Ewing, NJ
Posts: 85
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Damn 305's
I am having a prob with my motor, when i give it like 1/4 to 1/2 throttle it make a noise that sounds like it is coming from the intake almost like a ticking. if i give it a tiny bit of gas no noise and when i give it 3/4 + it makes no noise. It had done it before but i put in a bunch of lucas fuel treatment and put super in it. and it went away in like 20 min. i continued to put super in it but i went down to 89 for a couple of weeks no probs and it just randomly started again and it sounds like **** cuz it is kind of loud. I just don't know what it can b
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1979 Malibu Classic
2005 Dodge ram 3500 turbo diesel
Diablo sport predator
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05-01-2006, 04:10 PM
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#2
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13 Second Club
Join Date: Oct 2004
Location: Netcong, NJ
Posts: 5,799
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Check the valve springs, probably very very lose. Happened in my old 305 TPI .
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2019 Toyota Tacoma TRD Pro ... M6, Voodoo Blue Fun Machine
1987 Pontiac Trans Am ... 305 TPI, T5, Project Car
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05-01-2006, 04:17 PM
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#3
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Join Date: Aug 2004
Location: Ewing, NJ
Posts: 85
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did urs just need to be tightened down or did they need to be replaced
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1979 Malibu Classic
2005 Dodge ram 3500 turbo diesel
Diablo sport predator
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05-01-2006, 04:21 PM
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#4
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13 Second Club
Join Date: Oct 2004
Location: Netcong, NJ
Posts: 5,799
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Quote:
Originally Posted by Malibu79
did urs just need to be tightened down or did they need to be replaced
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I honestly couldnt tell ya ... I sold it before it could be fixed it looked like it just needed to be tightened, but IIRC all 305's eventually develop that problem.
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2019 Toyota Tacoma TRD Pro ... M6, Voodoo Blue Fun Machine
1987 Pontiac Trans Am ... 305 TPI, T5, Project Car
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05-01-2006, 04:23 PM
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#5
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Join Date: Aug 2004
Location: Ewing, NJ
Posts: 85
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thanks i will take a look at that
__________________
1979 Malibu Classic
2005 Dodge ram 3500 turbo diesel
Diablo sport predator
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05-01-2006, 04:35 PM
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#6
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Join Date: Feb 2006
Posts: 1,385
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if the car has high miles like 150 the timing chain might be rattelling around at off load speed --- but what could also be a worn out distrbutor advance weight mech they will rattel at off speed and also cause the timming to be off from the loosness causing it to ping as well and higher oct fuel will mask the problem and i think you said you went away from the high test gas ?? a lifter wont go away with gas and carb cleaner forget that jz
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05-01-2006, 04:50 PM
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#7
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Join Date: Aug 2004
Location: Ewing, NJ
Posts: 85
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motor only has about 12k mi on it
__________________
1979 Malibu Classic
2005 Dodge ram 3500 turbo diesel
Diablo sport predator
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05-01-2006, 04:56 PM
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#8
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Join Date: Feb 2006
Posts: 1,385
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but how old is the dist just take off the cap and the rotor and see if its all rusted and or loose and sticky or one of the springs is missing //???? jz
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05-01-2006, 05:26 PM
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#9
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Join Date: Aug 2004
Location: Ewing, NJ
Posts: 85
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i will look at that i havnt done ne thing with dis and i don't know when it has been serviced
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1979 Malibu Classic
2005 Dodge ram 3500 turbo diesel
Diablo sport predator
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05-03-2006, 11:09 AM
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#10
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Join Date: Aug 2004
Location: Hillsborough, NJ
Posts: 3,200
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How'd you make out with this? I have a 305 as well and just trying to learn what problems are associated with the sounds other people describe.
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I USED TO HAVE an 85 Camaro 305 4bbl, 90 Firebird V6, 97 Firebird V6 (10 speakers!). Despite the two family vehicles, 3 kids, wife and mortgage, I can finally realize the dream - 88 TA almost all stock... for now.
http://www.cardomain.com/id/untameddave
Wanted this - , but ended up with this - for free. Can't argue with free.
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05-03-2006, 01:21 PM
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#11
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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He hasn't done it yet....
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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05-16-2006, 09:46 PM
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#12
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Join Date: Aug 2004
Location: Hillsborough, NJ
Posts: 3,200
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Any luck with it? Looking for all the 305 wisdom I can get.
__________________
I USED TO HAVE an 85 Camaro 305 4bbl, 90 Firebird V6, 97 Firebird V6 (10 speakers!). Despite the two family vehicles, 3 kids, wife and mortgage, I can finally realize the dream - 88 TA almost all stock... for now.
http://www.cardomain.com/id/untameddave
Wanted this - , but ended up with this - for free. Can't argue with free.
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05-17-2006, 01:31 AM
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#13
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Stalker
Join Date: Aug 2004
Posts: 12,077
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i actually have the same issue on my '85 305, only "ticks" under load..hmmm
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05-17-2006, 12:17 PM
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#14
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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It's been running great the last week or two, he hasn't done anything.
I think it's just cranky because it knows that it's days are numbered....
- Justin
__________________
1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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05-17-2006, 04:59 PM
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#15
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Stalker
Join Date: Aug 2004
Posts: 12,077
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dahm, lol, i was hoping he found out what it was. ive been reading around and on TGO and some say it could be the loose rockers liek previously said here, so, tomorrow i may pop the valve covers off and see. I figure it wont hurt, plus i may actually check and set the timing, lol... anyone know what base timing should be? and is setting the timing on a 85 305 with the electronic quadrajet the same as setting the timing on a tpi motor?
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05-17-2006, 06:40 PM
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#16
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13 Second Club
Join Date: Oct 2004
Location: Netcong, NJ
Posts: 5,799
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Quote:
Originally Posted by SmokingSS
i actually have the same issue on my '85 305, only "ticks" under load..hmmm
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99% Guaranteed its a loose valve spring.
__________________
2019 Toyota Tacoma TRD Pro ... M6, Voodoo Blue Fun Machine
1987 Pontiac Trans Am ... 305 TPI, T5, Project Car
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05-17-2006, 09:44 PM
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#17
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Join Date: Aug 2005
Location: Vernon NJ
Posts: 363
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had the same issue with my 79 Z the had a 305, turned out to be bent push rod. Dropped a 350/350 crate mtr in
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05-18-2006, 01:06 PM
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#18
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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I doubt anything is amiss with his valvetrain. The longblock only has approx. 12k miles on it, and the valve covers were off about 1500 miles ago, everything was good then.
- Justin
__________________
1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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