Under the hood Help !
Thread Starter
Heel & Toe
Joined: Jul 2012
Posts: 20
Likes: 0
Under the hood Help !
hi guys ive had my 78 SA Vette for about 2.5 months now and have slowly been fixing parts that don't work. i am now moving under hood to address some issues there. i am a newbie in this area as i have not really worked on engines before, so excuse any stupid questions. thanks for any help in advance.
Am i missing a pipe or cap at the point shown in the image ?
In this image is that the original anti theft hood switch or an after market one ? and does the 78 SA come with an alarm ? secondly, where should the hood release cable be attached or what route should it take ?
firstly what is the grey cable for in the left hand bottom corner of the image for? this area seems to have had some bodge job done to it. what circuit is this wiring part of ? is that an after market horn for an alarm or original ? (it dosnt seem to be connected up so am most likely going to remove it unless it is original) and lastly what is the cut hose sticking out on the right hand side of the image ?
Noticed this fluorescent green liquid today any idea where it is leaking from ??
thanks again for any help
Am i missing a pipe or cap at the point shown in the image ?
In this image is that the original anti theft hood switch or an after market one ? and does the 78 SA come with an alarm ? secondly, where should the hood release cable be attached or what route should it take ?
firstly what is the grey cable for in the left hand bottom corner of the image for? this area seems to have had some bodge job done to it. what circuit is this wiring part of ? is that an after market horn for an alarm or original ? (it dosnt seem to be connected up so am most likely going to remove it unless it is original) and lastly what is the cut hose sticking out on the right hand side of the image ?
Noticed this fluorescent green liquid today any idea where it is leaking from ??
thanks again for any help
Race Director
Joined: May 2006
Posts: 18,662
Likes: 2,563
Am i missing a pipe or cap at the point shown in the image ?
Looks like you are missing the air preheater hose going to the aircleaner
That is an aftermarket alarm.
The green liquid is antifreeze from the gasket on your thermostat housing.
You need the AIM and shop manual for your car.
Looks like you are missing the air preheater hose going to the aircleaner
That is an aftermarket alarm.
The green liquid is antifreeze from the gasket on your thermostat housing.
You need the AIM and shop manual for your car.
Melting Slicks
Joined: Mar 2007
Posts: 2,520
Likes: 11
From: Hinckley OH
You are missing an air preheater hose that goes to the air filter housing if it's a stock housing.
The pin switch is for a stock alarm but the horn is aftermarket.
The antifreeze may be coming from the thermostat housing gasket or the radiator hose connection may be leaking.
The pin switch is for a stock alarm but the horn is aftermarket.
The antifreeze may be coming from the thermostat housing gasket or the radiator hose connection may be leaking.
Team Owner
Joined: Sep 2006
Posts: 31,170
Likes: 4,248
From: Westminster Maryland
Hi ad,
You got your answers!
Good pictures to show legit questions.
I agree that the ASSEMBLY INSTRUCTION MANUAL and the GM CHASSIS SERVICE MANUAL will be a big help to you, and really are worth their cost.
Good Luck!
Regards,
Alan
You got your answers!
Good pictures to show legit questions.
I agree that the ASSEMBLY INSTRUCTION MANUAL and the GM CHASSIS SERVICE MANUAL will be a big help to you, and really are worth their cost.
Good Luck!
Regards,
Alan
Melting Slicks
Joined: Oct 2006
Posts: 2,417
Likes: 336
From: Texas
the "cut hose" looks like it may run down to the bottom of the fender to the evaporative charcoal cannister. should be a tee in the pcv line that it probably goes to. looks as if the other 2 hoses(on top of steering box) that go to the cannister have been disconnected also.
Thread Starter
Heel & Toe
Joined: Jul 2012
Posts: 20
Likes: 0
thanks for all the replies guys.
i have an AIM on order, as im in the uk it takes a little longer for my item to arrive.
which Shop manual would you recommend ?
where can i get a GM CHASSIS SERVICE MANUAL or is the same as a shop manual ?
thanks again
i have an AIM on order, as im in the uk it takes a little longer for my item to arrive.
which Shop manual would you recommend ?
thanks again
Limping across the line
Joined: Oct 2002
Posts: 5,299
Likes: 109
From: Peoria Az
Many vedors here sell the manuals
I suggest a wiring diagram for your car also
AIM is Assembly Instruction Manual
GM Service Manual is the shop manual.
Get the one that was produced for GM not a Haynes* or Motor Manual* *(brand names)
The red or pink wire in next to last picture looks to go the Alternator that might be the Batt wire
I suggest a wiring diagram for your car also
AIM is Assembly Instruction Manual
GM Service Manual is the shop manual.
Get the one that was produced for GM not a Haynes* or Motor Manual* *(brand names)
The red or pink wire in next to last picture looks to go the Alternator that might be the Batt wire
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Melting Slicks
Joined: Sep 2004
Posts: 3,223
Likes: 666
From: Northeast
He hasnt posted that it is sold. 
http://forums.corvetteforum.com/c3-p...post1580856518
or in searching:
http://www.ebay.com/itm/1978-Corvett...rature&vxp=mtr
http://forums.corvetteforum.com/c3-p...post1580856518
or in searching:
http://www.ebay.com/itm/1978-Corvett...rature&vxp=mtr
Thread Starter
Heel & Toe
Joined: Jul 2012
Posts: 20
Likes: 0
thanks karol and AzMotorhead i have found that service manual and am thinking of getting it on CD, i have also ordered an AIM 
as regards to the cables there i need to tidy that area up looks like someone at some point cut into the wires to install an after market alarm possibly
as regards to the cables there i need to tidy that area up looks like someone at some point cut into the wires to install an after market alarm possibly
