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Author
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Topic: HELP 1.7 roller rockers adjusting
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LO925
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Member # 12113
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posted
 
 
i installed 1.7 roller rocker stud mounts n where making lots of clacking took valve cover off then did more tighter of a adjustment i first did a qurter turn n was too lose now i did a full turn n still makes a noise but not as bad n has more power anyone knoe exactly how to adjust them i have stock lifters 289 heads f cam 1.7 rockers stud mount
Posts: 25 | From: pittsburg | Registered: Jun 2012
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Camara90
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Member # 134
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posted
Here is a good write on how to. I go 1/4 turn, mostly street use 1/2 turn.
http://sbftech.com/index.php?topic=317.0
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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LO925
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Member # 12113
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thank you after doing this should it make any noise at all? some friends said that the air gots to bleed out drive it around ?
Posts: 25 | From: pittsburg | Registered: Jun 2012
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96stang4.6
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Member # 9970
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posted
may need valve springs if its clanging in the higher rpms i switched to 1.7s no cam and got valve float that happens around 5500 rpm
Posts: 164 | From: sac | Registered: Apr 2010
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LO925
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Member # 12113
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posted
heads are 289 frshly built with good springs its just making alot of noise clicking clacking i just put the heads on n my brother adjusted the rockers n then i started it up made hella noise n it wouldnt go away so we thought lifters where bad they where summit brand so i put stock ones back in then re adjusted 1/2 turn n still made noise then i looked at a video the other night and followed what he did n he did a full turn on zero lash n is quieter but still too loud
Posts: 25 | From: pittsburg | Registered: Jun 2012
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wilit
Mustang Messiah
Member # 3367
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posted
Did you check your piston to valve clearance? An F cam with 1.7's comes out to .544" of lift. That may be too much for most stock pistons that aren't notched for the extra lift.
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"If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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LO925
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Member # 12113
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posted
i looked into it alot of ppl say it would work but idk i should have checked i ran the car already n didnt hit but my buddy said if i miss shift or over rev it mite hit idk wat to do but i think i need some 1.6 rr
Posts: 25 | From: pittsburg | Registered: Jun 2012
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5.0 LsX
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Member # 10017
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did you soak the lifters in oil before installing them?
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91' Notch
Posts: 1260 | Registered: May 2010
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LO925
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Member # 12113
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no but now im concerned on ptv clearance
Posts: 25 | From: pittsburg | Registered: Jun 2012
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Camara90
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Member # 134
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posted
despite popular belief lift is not the most important factor in PTV clearance. Duration, cam lobes, and where it is degreed plays a bigger role. I run .574 lift exhaust lobe with stock pistons with TFS 170s.
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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LO925
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Member # 12113
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posted
i think ill be fine 289 194 valves f cam 1.7 rrs stock block
Posts: 25 | From: pittsburg | Registered: Jun 2012
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triple b
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Member # 8763
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posted
u cant adjust those un less u put in screwin studs the pressin studs o those heads run out of threads dude u need to have the right springs too for that cam and with that u risk a stud pulling out because they are press in it will happen been there done that scrap thise heads and get real ones. all it takes is one over rev and valve float will smack ur pistons cuz ur spring are too soft fyi
[ August 06, 2012, 01:20 PM: Message edited by: triple b ]
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1988 4cyl conv 306 HCI "sasha"
2004 tahoe
Sold- 87 GT, 72 chevelle, 63 biscane, 82 monte carlo, 73 nova, 88 silverado,
Posts: 1730 | From: sacramento ca | Registered: Nov 2008
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LO925
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Member # 12113
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posted
heads been rebuilt got springs and screw in studs
Posts: 25 | From: pittsburg | Registered: Jun 2012
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triple b
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Member # 8763
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posted
good to go run it. Ur best bet is to take one head off and run putty on it to be 100% sure but if u have the right springs i don't see why u would have valve float the only other thing is coil bing but hey sounds like ur already running it so..
[ August 06, 2012, 03:03 PM: Message edited by: triple b ]
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1988 4cyl conv 306 HCI "sasha"
2004 tahoe
Sold- 87 GT, 72 chevelle, 63 biscane, 82 monte carlo, 73 nova, 88 silverado,
Posts: 1730 | From: sacramento ca | Registered: Nov 2008
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LO925
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Member # 12113
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posted
yeah thanks man ima jusrun it i guess i dont wanna tear it down worst comes to worst ill be able to awnser my question lol if it will hit or not
Posts: 25 | From: pittsburg | Registered: Jun 2012
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