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05-08-2012, 12:30 PM
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#1 |
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Registered User
Join Date: Mar 2009
Location: gravois mills missouri
Posts: 47
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Missing heat riser
Finially looked at the passenger side exhaust leak Ive had since I brought it home. Took a minute but realized some one has removed the heat riser. The studs are way to long to tighten up and I see no way a donut could seal in the manifold opening even if shorter studs were installed. Is the only option to buy a new heat riser or can what I have be made to work. Hate to spend so much on a part when I would not use its actual function anyway. It would just be a spacer at this point. Should have added this in on a 78 k20 with a little 400
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1963 chevy shortstep 327 1965 c60 292 2007 Ram 3500 5.9 cummins |
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05-08-2012, 01:33 PM
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#2 |
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Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Missing heat riser
Maybe just time for headers then? Or you can go to a wrecking yard grab a heat riser and pull the insides out jb weld the holes and use it basicly as a spacer
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377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511 |
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05-08-2012, 04:14 PM
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#3 |
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Registered User
Join Date: Sep 2011
Location: Stockholm
Posts: 263
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Re: Missing heat riser
I took the heat raiser out on mine and exchanged the studs for short ones, put in a donut and have not had any leak issues.
Old studs were a pain to get out tough.
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Tom.______________________________________ The fleet: 2007 BMW 530xi M (daily driver) 1986 C-10 Stepside (project "my time") 1992 Corvette cab (summer time daily driver) 1969 Cadilac DeVille Cab ("it just need some paint") |
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05-08-2012, 09:49 PM
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#4 |
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Registered User
Join Date: Jul 2011
Location: SW Ontario
Posts: 1,204
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Re: Missing heat riser
Short studs and a donut. The manifold is otherwise the same as one without a heat riser. (in other words, don't bother with a heat riser. doesn't serve much purpose anyway, even here where the winters get cold in the rust belt, heat risers fall by the wayside once they corrode to the point of siezing).
Alex. |
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05-08-2012, 10:08 PM
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#5 |
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78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Missing heat riser
shorter studs worked for me and a dounut
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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05-09-2012, 01:38 PM
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#6 |
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Registered User
Join Date: Mar 2009
Location: gravois mills missouri
Posts: 47
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Re: Missing heat riser
Thanks you for the replies - I'll get the shorter studs and pull the manifold this week end to change it over. I did not realize the right manifold was made inside to accept the donut gasket . Glad I do not have to buy a $60.00 part just for spacer.
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1963 chevy shortstep 327 1965 c60 292 2007 Ram 3500 5.9 cummins |
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05-10-2012, 08:52 AM
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#7 |
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78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: Missing heat riser
mine had to be heated,hence the colour change
depending on the shape you may need some heat on them to come out most pitted/rusted i've tried,have snapped off
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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05-10-2012, 09:12 AM
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#8 | |
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Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,148
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Re: Missing heat riser
Quote:
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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05-10-2012, 09:23 AM
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#9 |
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Registered User
Join Date: Nov 2004
Location: Long Island NY
Posts: 293
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Re: Missing heat riser
does NAPA carry the studs? I'm in the process of doing mine as well...
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I feel sorry for people who don't drink....because when they wake up in the morning, that's the best they're gonna feel all day long!---Frank Sinatra RIP [B]1972 Chevrolet K5 Blazer RIP 1986 GMC Sierra K3500 1TON, Long Box, V8350 RIP 1980 Chevy Silverado C30 Cab and Chassis, 454 TH400HD. RIP [B] 1995 Chevrolet Tahoe 2D [B] |
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05-10-2012, 08:36 PM
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#10 |
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Registered User
Join Date: Jul 2011
Location: SW Ontario
Posts: 1,204
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Re: Missing heat riser
Yes they do. Mine has 'em hanging on a peg in a blister pack of two. Yeah, TWO. Not three, not four (foUrtunately), but two.
Alex. |
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