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| Potentially blown head gasket? (Page 3/4) |
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cartercarbaficionado
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MAY 20, 02:04 PM
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| quote | Originally posted by 1985 Fiero GT:
Well, I will be digging deep into my engine, so this would be the time to install them, along with all that porting in the intake, so if you could get them out, that would be wonderful, don't rush so much you don't video it though, you have to get your YouTube content! |
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you should check your block flatness too. get a good straight edge and some feeler gauges or a pane of glass and sand paper (like 600 grit) and some light paint (machinist blue is the best) to check if there's any obvious low spots which is what I had on my 86 v6 in my 88, I fixed that by actually installing thicker felpro MLS gaskets off of a different gm 60° v6 but I don't remember which one (sane gasket but it was like 0.020 thicker) copper coat also works
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1985 Fiero GT
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MAY 23, 08:13 AM
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Well, with some technical knowledge from 82-T/A, I tore my engine down Tuesday, all the way down to the block, The milkshake of coolant/oil definitely seemed worst in the camshaft area, and the lower intake manifold gaskets were really deteriorated, and brittle. The head gasket coolant holes were almost plugged up with junk too. I took the opportunity to paint the engine bay gloss black (everything attached to the walls except the coil air tube) as some of the burnt looking silver wire shielding really stuck out in the engine bay, now the only things remaining that will be silver will be directly on the engine package, shift cables, exhaust, etc.
While I'm this deep in the engine, I also ordered a timing chain/gears, water pump, and the gaskets for all that, do it right, do it once. Regarding the crankshaft timing gear, it is press fit on, any suggestions for removal and reinstallation? I've read to use a chisel and crack the old gear, how easy is that, or is it so brittle it just cracks really easily? For installation, heating the new gear to 500* and maybe applying ice to the crank will allow it to just slide on?
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theogre
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MAY 23, 08:37 AM
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When installing the timing cover...
Must install the balancer or use crank tool to align the crank seal before tightening the cover.
Plus this seal type need thin coat of Super 300 or related paint sealer on metal outer to seal small gaps/scratches where meet metal cover/case.
If not then expect seal leaking oil there sooner not latter.
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82-T/A [At Work]
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MAY 23, 08:03 PM
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| quote | Originally posted by 1985 Fiero GT:
While I'm this deep in the engine, I also ordered a timing chain/gears, water pump, and the gaskets for all that, do it right, do it once. Regarding the crankshaft timing gear, it is press fit on, any suggestions for removal and reinstallation? I've read to use a chisel and crack the old gear, how easy is that, or is it so brittle it just cracks really easily? For installation, heating the new gear to 500* and maybe applying ice to the crank will allow it to just slide on? |
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Looks really nice!
I know you said you were going to do some port-matching of the intake pieces... but while you're at it, you can also hog out the exhaust manifold ports too... here's a good thread that I found with a bunch of people who did it: https://www.fiero.nl/forum/...100421-2-095624.html
I've never actually done it myself... at the time, Ed Parks was selling ported manifolds, and I bought a set from him back in the day. But I noticed a huge difference in performance by literally just doing that. It's dyno-proven to give you ~8 horsepower at the wheels over an otherwise stock motor. It's one of the biggest / quickest gains you can get on the Fiero.
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1985 Fiero GT
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MAY 23, 08:06 PM
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| quote | Originally posted by 82-T/A [At Work]:
Looks really nice!
I know you said you were going to do some port-matching of the intake pieces... but while you're at it, you can also hog out the exhaust manifold ports too... here's a good thread that I found with a bunch of people who did it: https://www.fiero.nl/forum/...100421-2-095624.html
I've never actually done it myself... at the time, Ed Parks was selling ported manifolds, and I bought a set from him back in the day. But I noticed a huge difference in performance by literally just doing that. It's dyno-proven to give you ~8 horsepower at the wheels over an otherwise stock motor. It's one of the biggest / quickest gains you can get on the Fiero. |
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Yep, already did that last winter, when I painted the intake, etc. that along with the other winter upgrades (coil, plugs/wires, a few more things) brought my 0-60 from 7.6 seconds (already respectable for stock) to 7.0 seconds.
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82-T/A [At Work]
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MAY 23, 08:37 PM
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| quote | Originally posted by 1985 Fiero GT:
Yep, already did that last winter, when I painted the intake, etc. that along with the other winter upgrades (coil, plugs/wires, a few more things) brought my 0-60 from 7.6 seconds (already respectable for stock) to 7.0 seconds. |
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You have a 4-Speed manual right?
My 1985 Fiero GT 4-Speed was the quickest off the line Fiero I ever owned. The heads had been decked, and it had the 4.10:1 4-Speed in it from an 84 Fiero... but man, that thing was crazy off the line. Even with my BF Goodrich T/A Comps, it would just spin the tires unless I feathered it in first gear. My 85 GT had absolutely no options except power windows, A/C, and a spoiler. It was a red hard top, and man did it go. Top speed though, my 87 Fiero SE / V6 (3.33:1 3-Speed auto) would pull away from it once we hit about ~45 miles an hour.
Fun story... I actually drove it into a concrete wall after dropping my friend off at the airport. The road was pitch black, and I couldn't see anything, and the headlights weren't lighting up where I needed to go for some reason. I didn't realize the road had turned into a round-about, so I just want straight on (I was only doing about ~25), and slammed right into the concrete embankment and banged my head on the steering wheel (seatbelt sucked). The car bounced back off and into the road... engine was still running. I applied the parking break, got out of the car... saw absolutely no damage. I just had to pull the front nose back out a bit. The Fiero emblem had come off... but I got back in the car and drove the 30 minutes back home to my apartment. Continued driving it for another year and sold it on eBay to someone who drove it up to Ohio. What a great car... hahaha. It had like 150k+ miles on it at that point.[This message has been edited by 82-T/A [At Work] (edited 05-23-2024).]
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1985 Fiero GT
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MAY 23, 08:49 PM
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| quote | Originally posted by 82-T/A [At Work]:
You have a 4-Speed manual right?
My 1985 Fiero GT 4-Speed was the quickest off the line Fiero I ever owned. The heads had been decked, and it had the 4.10:1 4-Speed in it from an 84 Fiero... but man, that thing was crazy off the line. Even with my BF Goodrich T/A Comps, it would just spin the tires unless I feathered it in first gear. My 85 GT had absolutely no options except power windows, A/C, and a spoiler. It was a red hard top, and man did it go. Top speed though, my 87 Fiero SE / V6 (3.33:1 3-Speed auto) would pull away from it once we hit about ~45 miles an hour. |
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Yeah, the regular 4 speed that came with it, power windows, mirrors, no AC (60 pounds weight I think right there) block heater haha, sunroof (better for my height). It is right at the power level where in a launch I can roast the tires, or lug the engine, depending how much rpm I start with (launch at 3000 will spin the tires, 2000 will lug the engine, 2500 is usually a perfect launch). The 4.10 gearing is better for launches, all others are better for top speed. Interestingly enough, a 4 cyl Fiero with the 4.10 trans will launch and accelerate faster then any of the v6s, any trans, for all of the short first gear, but as soon as the 4cyl shifts into second, the v6 takes off.
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1985 Fiero GT
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MAY 23, 08:55 PM
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| quote | Originally posted by 82-T/A [At Work]:
Fun story... I actually drove it into a concrete wall after dropping my friend off at the airport. The road was pitch black, and I couldn't see anything, and the headlights weren't lighting up where I needed to go for some reason. I didn't realize the road had turned into a round-about, so I just want straight on (I was only doing about ~25), and slammed right into the concrete embankment and banged my head on the steering wheel (seatbelt sucked). The car bounced back off and into the road... engine was still running. I applied the parking break, got out of the car... saw absolutely no damage. I just had to pull the front nose back out a bit. The Fiero emblem had come off... but I got back in the car and drove the 30 minutes back home to my apartment. Continued driving it for another year and sold it on eBay to someone who drove it up to Ohio. What a great car... hahaha. It had like 150k+ miles on it at that point.
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Wow, not bad haha, I hope to never have that happen to me though haha, I'm more likely to knock the legs of a moose where I am (saw one today, and my dad had one cross the trans-Canada in front of him the other day), in a way I'm thankful it's so low, it would legitimately miss most of the moose.
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Patrick
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MAY 23, 10:04 PM
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| quote | Originally posted by 1985 Fiero GT:
I'm more likely to knock the legs of a moose where I am (saw one today, and my dad had one cross the trans-Canada in front of him the other day)...
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Canadian, eh?  No moose around Vancouver though. Would be much much more likely to come across a bear here.
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1985 Fiero GT
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MAY 23, 10:14 PM
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| quote | Originally posted by Patrick:
Canadian, eh? No moose around Vancouver though. Would be much much more likely to come across a bear here. |
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Yeah, Northwest tip of NB, sandwiched between Quebec and Maine, lots of moose, Coyotes, a few wolves (wolves are supposed to be extinct in NB) and lots of mosquitoes haha
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