I am putting together an 87 TII engine, casting date is dec 86, fuel pump blockoff plate but the 11mm bolts are very tight? I thought 10mm was over in 85 or do I have a weird one off block?
I am putting together an 87 TII engine, casting date is dec 86, fuel pump blockoff plate but the 11mm bolts are very tight? I thought 10mm was over in 85 or do I have a weird one off block?
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
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I think it was the end of 85 and all 86+
2022 Viper runs 9s
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
Simon, the block you've got should be 11mm, I've never seen any 87's with 10mm bolts. Personally I've never seen any 86 model year cars with 10mm bolts either, even ones with late 85 block castings. Make sure you've got the right bolts and that the threads are clean.
Dave Tekampe
Director SDAC National
VP SDAC-Chicago
85 GLH-Turbo (DC intercooled)
86 GLHS #107
87 GLHS #148
87 CSX #161, #608, #674
88 CSX-T #529, #541
89 Shadow Competition Package and lots more...
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
I would clean out the threads with a good bottoming tap and see how they go in.
Dave Tekampe
Director SDAC National
VP SDAC-Chicago
85 GLH-Turbo (DC intercooled)
86 GLHS #107
87 GLHS #148
87 CSX #161, #608, #674
88 CSX-T #529, #541
89 Shadow Competition Package and lots more...
No such thing as TII with 10's
I know, it's Mopar so never say never I think your threads are just gunky.
Ha, Simon has GUNK in his TRUNK, er, underhood that is. SOmetimes you just gotta go with it
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I don't think you can even get an 11 mm bolt or stud started in a 10 mm hole. Also, I do know that the ARP bolts & studs have a tiny bit more meat in the threads than the stock bolts. The advice on cleaning out the holes with a bottoming tap is good advice for all engine builds. It gives accurate torque application to every hole then.
Barry
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1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
the 10 mm swap was in mid 1985 for a fact. and yes never trust the machine shop to rechase all the threads. I always check everyone myself and find a couple that didn't get done...
Turbo Joe
----------------------- 87 CSX #175 TIII powered, MegaSquirt3 Pro Ultimate, GTX3076R, Turbo Joe header, Lengel intake, Menegon ported head, the list goes on
Here's a slight thread hijack: I have an '85 that I'm going to change the head on. I got the Mopar Performance 11mm bolts for this job. If the engine has the 10mm bolts (I got an 11mm tap just in case) do I have to run a pilot drill down the 10mm holes? Since the thread pitch is the same I figured that may not be necessary. Can I just use the existing holes as pilot holes and start tapping?
The production date on my barely legible door sticker looks like 6/85 so I may get lucky. Thanks, Bill
Only, and I mean only, if the tap is HIGH QUALITY and strong. If not and it breaks... you're fudged.....
-Nate- ''Sometimes I wonder whether the world is being run by smart people who are putting us on, or by imbeciles who really mean it.'' Mark Twain
When Mopar used to sell the tap it came with a drill bit.
Dave Tekampe
Director SDAC National
VP SDAC-Chicago
85 GLH-Turbo (DC intercooled)
86 GLHS #107
87 GLHS #148
87 CSX #161, #608, #674
88 CSX-T #529, #541
89 Shadow Competition Package and lots more...
its the date on the block you have to look at.. the closer to the mid and later on through 85 the better your chances for 11mm
this was the main reason I hated owning 85's.. when i popped a head gasket it was a gamble on the first try so I'd pull a head bolt out first and check it.
then I'd go get the right parts, although back then I bought the affordable fel-pro parts... on a sunday morning cause i beat on it sat nite...
Turbo Joe
----------------------- 87 CSX #175 TIII powered, MegaSquirt3 Pro Ultimate, GTX3076R, Turbo Joe header, Lengel intake, Menegon ported head, the list goes on
Thanks, it sounds like the drill bit is a must. I've dealt with too many snapped taps in the past (actually, one is too many).
If I recall, the block casting date is somewhere in the vicinity of the turbo so I think I'll wait until I have good reason to be under there. Bill
I would try without the drill first. 1mm isn't really that much so if you drill first, you could be rounding off the threads and thus weakening them.
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
Maybe some day I'll take a tap, drill bit and cordless drill to the local u-pull-it, find an older 2.2 with the head missing and experiment. Bill