Water Pump Question? (Page 1/1)
fierofool JUL 19, 11:57 AM
In this picture, which bolts pass into the coolant passages and require sealing? V6 engine.
Patrick JUL 19, 01:44 PM

quote
Originally posted by Patrick Here:

I cropped your image a bit, but it demonstrates perfectly which bolt (there's only one) that protrudes into the water jacket, and therefore needs to have sealer on it.



fierofool JUL 19, 03:59 PM
So, my WAG would be Number 4. Thanks, Patrick. I have that image stored somewhere but it's not tagged with a name, probably just a sequence number.
Patrick JUL 19, 04:39 PM

Yes Charley, #4 is the only bolt that requires sealer.
Vintage-Nut JUL 19, 05:07 PM

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Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles

Dennis LaGrua JUL 19, 07:45 PM
Only the sole water pump replacement that I did on the Fiero 2.8L later to a 3.4L, we replaced all the bolts with stainless steel hex head bolts. I could never understand the thinking that GM had for using Torx head bolts in this water pump location.. Much easier to remove hex head bolts and also easier to torque them to spec.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

fierofool JUL 19, 09:05 PM
This will be on my 3.4. When we installed the engine, we converted to hex heads. I do have a full set of Torx impact bits, but I mostly use them for throwing at the chipmunks as they run from underneath the cars.