89 Vette: Thick White smoke coming from tailpipe
#41
Race Director
Also...I'd be curious what kind of head gasket WW7 used. We rebuilt around the same year. I used Cometic head gaskets. Plus...I agree there are a fair share of alum-headed 350 head gasket failures (usually in the rear). They were usually attributed to the combo of cooling irregularities and dissimilar metals (head/block). I'm sure WW7 knows this. I'd be curious if you maintained the rear x-over pipe too.
Last edited by GREGGPENN; 12-02-2017 at 01:21 AM.
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PoweredbyVette (12-02-2017)
#42
Le Mans Master
I agree the 2nd pic is the KS. I didn't see if anyone addressed the first picture -- which is actually a "plug". That looks like the connector for the O2 sensor to me.
Also...I'd be curious what kind of head gasket WW7 used. We rebuilt around the same year. I used Cometic head gaskets. Plus...I agree there are a fair share of alum-headed 350 head gasket failures (usually in the rear). They were usually attributed to the combo of cooling irregularities and dissimilar metals (head/block). I'm sure WW7 knows this. I'd be curious if you maintained the rear x-over pipe too.
Also...I'd be curious what kind of head gasket WW7 used. We rebuilt around the same year. I used Cometic head gaskets. Plus...I agree there are a fair share of alum-headed 350 head gasket failures (usually in the rear). They were usually attributed to the combo of cooling irregularities and dissimilar metals (head/block). I'm sure WW7 knows this. I'd be curious if you maintained the rear x-over pipe too.
When my engine was built 7 years ago the head gasket used was a Felpro (FEL-7733PT2) , this is the same gasket I used this summer when I replaced them, (these are excellent gaskets).. I believe my head gasket failure was due to using the intake manifold gaskets that have the restriction holes at the back...I removed the small rear pipe on my intake manifold when I installed the Edelbrock intake, and I believe the combination of using restricted intake gaskets and no rear water pipe caused excessive heat at the rear of the Dart heads and over the 7 years caused head gasket failure...When I reassembled the motor this time I used the full flow intake gaskets (FEL-1205) to help even out the temperture of the heads...I took several readings with a laser temperture gauge a few years ago and found the rear of the heads ran much higher temps then the front of the heads with the restrictor gaskets..With the full flow 1205 gaskets now installed the front and rear of the heads are very close in temperture...
So my conclusion is , If your going to run restrictor intake gaskets ,you should leave the rear water pipe in place. Evidently the small pipe helps cool the rear of the heads enough to stop from blowing head gaskets...My suggestion is , if you get away from a stock intake setup like you and I did , just run the full flow open intake gaskets and you won't have a problem, with or without using the small rear water pipe....WW
Last edited by WW7; 12-02-2017 at 07:32 AM.
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PoweredbyVette (12-02-2017)
#43
You said you have a Factory service manual, go to page 6A1-8 and it explains how to adjust the valves the easiest way possible.. You only have to get the engine up on "#1 top dead center" adjust 8 valves, then turn the motor over one full turn , and adjust the other 8 valves..For a completely stock top end motor this works as well as any method, plus it's very easy to do..Just follow the book.... If you get a new knock sensor, make sure you torque it to the proper spec ( it's in the FSM) , they don't work properly unless they are torqued correctly...WW
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#44
I agree the 2nd pic is the KS. I didn't see if anyone addressed the first picture -- which is actually a "plug". That looks like the connector for the O2 sensor to me.
Also...I'd be curious what kind of head gasket WW7 used. We rebuilt around the same year. I used Cometic head gaskets. Plus...I agree there are a fair share of alum-headed 350 head gasket failures (usually in the rear). They were usually attributed to the combo of cooling irregularities and dissimilar metals (head/block). I'm sure WW7 knows this. I'd be curious if you maintained the rear x-over pipe too.
Also...I'd be curious what kind of head gasket WW7 used. We rebuilt around the same year. I used Cometic head gaskets. Plus...I agree there are a fair share of alum-headed 350 head gasket failures (usually in the rear). They were usually attributed to the combo of cooling irregularities and dissimilar metals (head/block). I'm sure WW7 knows this. I'd be curious if you maintained the rear x-over pipe too.
#45
Any fellow 89'ers know what replacement head bolts I need that come with the thick washers like OEM? And where I can purchase them?Please help,emailed arp and didn't receive a response.Could really use a vet 89vette owner reply.
#46
Le Mans Master
PS... Didn't you already have Mahle bolts for this motor..? If so you could just buy thick washers from a hardware store...
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Last edited by WW7; 05-11-2018 at 09:30 AM.
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PoweredbyVette (05-11-2018)
#47
Team Owner
I assumed that as well but i was hoping it can be something else? Can it also possibly be a leaky manifold gasket? There was also dropplets of water coming from the tailpipes but that stopped and smoked continued.Before i replaced the water pump the car overheated bad.Oil temp and coolant temp got really hot over 250.
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PoweredbyVette (05-11-2018)
#48
Go to Summitracing.com and get the small block 350 ARP bolts , they are for all small block chevys... These come with the thick washers , just make sure you put them on with the beveled side up, and make sure to use thread sealer on the threads , and lube on the bolt and washer.. Unlike most bolts you can reuse ARP bolts over again... I would look them up for you ,but Im at Dennys having breakfast....WW
PS... Didn't you already have Mahle bolts for this motor..? If so you could just buy thick washers from a hardware store...
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PS... Didn't you already have Mahle bolts for this motor..? If so you could just buy thick washers from a hardware store...
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#49
That was a year old question but thanks,was a gasket and valve seals,need the correct replacement head bolts if you have a part# by any chance for reference so i dont order the wrong set please.@dmaxx3500 , @WW7?
Last edited by PoweredbyVette; 05-11-2018 at 06:24 PM.
#50
Le Mans Master
The ARP bolts I bought at Summit had number #134-3601 on the box.. These have a standard 6 point head design...The bolts come with lube, but get a tube of the ARP thread sealer....You can't go wrong with ARP......WW
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Last edited by WW7; 05-11-2018 at 08:13 PM.
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PoweredbyVette (05-25-2018)
#51
#52
Last edited by PoweredbyVette; 05-25-2018 at 03:23 AM. Reason: added pics
#53
My guess us universal gaskets.
if you put it on the drivers side, it will work, passenger side. it works.
if not, then you would have a Left and Right only gasket? Easier to just make one fit all.
if you put it on the drivers side, it will work, passenger side. it works.
if not, then you would have a Left and Right only gasket? Easier to just make one fit all.
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PoweredbyVette (05-25-2018)
#54
Thanks thats what i that as well,the head has a actual hole though that corresponds with that blind hole on the block thats what was confusing.Those felpro's that have the stripes can go anyway up as long as not marked.Checked other stock block and heads its the same.I guess thats just how they designed it.
#55
Anyone know what the name of this connector that cut me? The (f) prongs came out of the connector cable end and stuck to the (m) prong it plugs into,
needs to be replaced .
needs to be replaced .
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PoweredbyVette (05-27-2018)
#58
Team Owner
Member Since: Oct 2004
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St. Jude Donor '05
Gasket as said is fine, unless those are torque to yield bolts which I believe they arent just reuse them.
Had my water pump go too, along with a lower hose eventually blowing off. It was combustion gases in the system. Wasnt til it was in the middle of the smog you could smell coolant and finally see smoke.
Cleaned the system out, guy said "It sure burns clean"
Looks like you are on your way, about every L98 does this.
Had my water pump go too, along with a lower hose eventually blowing off. It was combustion gases in the system. Wasnt til it was in the middle of the smog you could smell coolant and finally see smoke.
Cleaned the system out, guy said "It sure burns clean"
Looks like you are on your way, about every L98 does this.
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PoweredbyVette (05-27-2018)
#59
does anyone know if a triangle heat riser flange gasket is needed on the exhaust manifold/exhaust? My gasket kit didnt come with them,but i see some that do and i see other previous year c4 that use them but they seem hard to find for the 89?
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PoweredbyVette (05-28-2018)