Ruff Idle ,Huge Loss of Power

[Tripler]

On another note , is there a trick to getting plugs out of an LT5 ? I tried 2 that were easily accessible and had no luck . Maybe my old arthritic hands have lost there old man strength lol .

Mike

[32valvZ]

Originally Posted by Tripler

On another note , is there a trick to getting plugs out of an LT5 ? I tried 2 that were easily accessible and had no luck . Maybe my old arthritic hands have lost there old man strength lol .

Mike

try a 1/2" set up with a breaker bar.

[Tripler]

Originally Posted by 32valvZ

try a 1/2" set up with a breaker bar.

Agree but is there an off chance that the larger wrench would break the plug off ? That was my concern . Not used to working on this beast as I only work on small car engines and motorcycles mostly and did not expect these plugs to be as tight as they are . Yikes .

Thanks for the tip.


Mike

[secondchance]

Originally Posted by Tripler

Agree but is there an off chance that the larger wrench would break the plug off ? That was my concern . Not used to working on this beast as I only work on small car engines and motorcycles mostly and did not expect these plugs to be as tight as they are . Yikes .

Thanks for the tip.


Mike

As long as your socket is securely over the hex portion of the plug it won't break the plug. When the spark plug breaks, it's between the metal hex and ceramic body. However, if the plug is seized on to the head, I imagine, one could strip the thread off the head.
I myself, if concerned, might vacuum the plug hole as much as possible and blow out with compressed air, spray WD40, let it soak overnight and loosen. However, WD40 in the hole can lead to dirt flowing into the combustion chamber when the plug is removed.

[secondchance]

Originally Posted by Tripler

So from what I am reading and from what you guys are saying , the fuel pressure regulator is toast . Any idea where I purchase a new one and also how difficult are they to change out .



Is this the right one ?
https://www.ebay.com/itm/Fuel-Inject...oAAOSwxMRbnQfo


Also reading Dynomites blog .
https://www.corvetteforum.com/forums...post1596384563



Thanks



Mike

First one off Ebay will not work.
Second one is Phil's modified serviceable fuel pressure regulator.

Maybe someone with a good used one will chime in.

[Tripler]

Just looking over Phil's amazing build !

http://www.zr1.net/forum/showthread.php?t=28304

[Tripler]

Thanks for the replies secondchance .

Mike

[Ccmano]

Originally Posted by Tripler

Just looking over Phil's amazing build !

http://www.zr1.net/forum/showthread.php?t=28304

Agreed the eBay one will not work. Unless you find a correct one on eBay or someone is gracious enough to sell one out of their stash, contact Phil and see if he will repair yours.

I use this setup for the #8 plug, a straight extra long extension works for the rest. Notice that the spark plug socket has the universal built in. When unseating a plug I use a quick snap of force against the ratchet handle to get them unseated.



Paul rightly points out that if you do a fuel pressure test, not looking so much actual pressure, but if the fuel pressure bleeds off quickly when the pumps shut down, that’s another indicator that the pressure regulator is bad.
H

[Tripler]

Originally Posted by Ccmano

Agreed the eBay one will not work. Unless you find a correct one on eBay or someone is gracious enough to sell one out of their stash, contact Phil and see if he will repair yours.



I use this setup for the #8 plug, a straight extra long extension works for the rest. Notice that the spark plug socket has the universal built in. When unseating a plug I use a quick snap of force against the ratchet handle to get them unseated.







Paul rightly points out that if you do a fuel pressure test, not looking so much actual pressure, but if the fuel pressure bleeds off quickly when the pumps shut down, that’s another indicator that the pressure regulator is bad.

H

Good info . Thanks . I was able to get the right side plugs out just using a 1/4 inch drive and mustering up old man strength. They were not as tight as I originally thought so got them all out . They all smelled raw gas , seemed wet and also do not look fouled . The four were a light tan brown .
Pics of plugs from front of engine to firewall.


Sent from my ASUS_X00PD using Tapatalk

[Tripler]

Also picked this wobble extension set up for $11 canuck. Usually $70 .

Sent from my ASUS_X00PD using Tapatalk