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Researching an 88 duke rebuild. Any links or info ? by robert1234
Started on: 08-08-2017 09:45 PM
Replies: 13 (334 views)
Last post by: robert1234 on 08-16-2017 08:34 PM
robert1234
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Report this Post08-08-2017 09:45 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
I'm looking for information for a duke rebuild.
Anyone have any or can link me ?

Appreciated !

Thanks
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Report this Post08-09-2017 02:52 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
First doing anything else is find 88 Balancer Unit on Bottom end. (in oil pan above the filter. can't miss it.)
Find new Or find a shop can rebuild yours. Either is hard to impossible.
That will kill all other plans and no point bothering to collect other data.

Balance shafts is in brass bearing and bearing likely worn out.
Bad bearing here will wreck the entire engine.

87 VIN R is PnP w/o the Balancer. Find and if needed rebuild that.

VIN R for 87-92 are all PnP but some big changes over time and need data for model year of car came out of.
Example: Later years may have a Timing Chain. Others like 87-88 only have the "weak" timing gears.

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[This message has been edited by theogre (edited 08-09-2017).]

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robert1234
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Report this Post08-09-2017 10:31 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
So, I should pull the oil pan and look at the balancer ?
The engine sounds like a lawn mower.....alot of noise.

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theogre
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Report this Post08-10-2017 12:56 AM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
Likely just pull the oil filter in the pan will tell if balancer is dying.
See //www.fiero.nl/forum/Forum1/HTML/097703.html

could be dying cam gear etc. Many other parts are available but a worn balancer then don't bother fixing them.
Any engine w/ filter in the pan have balancer.
Worn balancer can wear crank shaft gear driving it.

Could try Jasper and other rebuild engines but many won't have them for a lot of cars over 20+ years.

[This message has been edited by theogre (edited 08-10-2017).]

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robert1234
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Report this Post08-10-2017 08:23 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
So, is this even worth my time ?
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robert1234
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Report this Post08-10-2017 09:31 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
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Report this Post08-14-2017 08:51 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
Not sure what VIN engine an 88 Fiero would use.

VIN "U" NOS 86 long block here. Appears to be a DIS block (no provision for distributor)
Has metal cam/crank gear and provision for side mounted water pump.
http://www.ebay.com/itm/GM-...4:g:JCAAAOSwImRYSEiT

They also have a VIN "R". Appears to be a DIS block (no provision for distributor)
http://www.ebay.com/itm/GM-...4:g:AOYAAOSwj85YRvrk

They also have NOS short blocks and NOS heads.
Check their 'other items for sale" list...

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[This message has been edited by fierosound (edited 08-14-2017).]

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Report this Post08-14-2017 12:55 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fierosound:

Not sure what VIN engine an 88 Fiero would use.

VIN "U" NOS 86 long block here. Appears to be a DIS block (no provision for distributor)
Has metal cam/crank gear and provision for side mounted water pump.
http://www.ebay.com/itm/GM-...4:g:JCAAAOSwImRYSEiT

They also have a VIN "R". Appears to be a DIS block (no provision for distributor)
http://www.ebay.com/itm/GM-...4:g:AOYAAOSwj85YRvrk

They also have NOS short blocks and NOS heads.
Check their 'other items for sale" list...
All Fiero Dukes are VIN R only but VIN R covers several versions of engines.
Fiero list See my Cave, Duke Quick Ref other changes happen later for 89-92my.

VIN U A and E may look about the same but is not.
See my Cave, DIS L4 Replace
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robert1234
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Report this Post08-14-2017 09:22 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
Awesome everyone. So is it the 8th digit on my VIN that tells me what I need to know?
So all are R. Is it a long block like on ebay, see link from fierosound

[This message has been edited by robert1234 (edited 08-14-2017).]

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theogre
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Report this Post08-15-2017 12:07 AM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by robert1234:
Awesome everyone. So is it the 8th digit on my VIN that tells me what I need to know?
Not quite.
Ebay VIN R is a balancer type so ask them if it comes w/ a balancer. (non balancer has same spin on oil filters below right of lifter gallery.)
but the head won't take 88 intake manifold.

22P says 87-88 use one head. Ebay is yet another version of the engine and head is different and need correct intake but might work otherwise.

see //www.fiero.nl/forum/A...130314-2-116541.html
dead picture but same thing //www.fiero.nl/forum/A...14-2-074087.html#p19

so two options...
get another intake (89-90 GA and others used same)
reuse head and intake you have.

look like engine has no warranty.

(some 88-92 VIN R uses a timing Chain set not simple gears and cam is made to spin backwards to old versions. VIN U had them too but U have many differences and if you get them have to fix mounting other things to the engine. RA have picture of a long block VIN U many mounting points are different.)

[This message has been edited by theogre (edited 08-15-2017).]

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Dennis LaGrua
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Report this Post08-15-2017 12:23 AM Click Here to See the Profile for Dennis LaGruaClick Here to Email Dennis LaGruaSend a Private Message to Dennis LaGruaEdit/Delete MessageReply w/QuoteDirect Link to This Post
Want a rebuilt engine. I believe that Jasper engines has them.

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Report this Post08-15-2017 02:15 PM Click Here to See the Profile for FieroTonyClick Here to Email FieroTonySend a Private Message to FieroTonyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Feel free to use the below dropbox link for 88 Fiero info that I've collected over the past 5 years or so, including the 88 GM service manual.

Hope this helps somewhat.

https://www.dropbox.com/sh/...pE5Xxg6X8P3Zspa?dl=0
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robert1234
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Report this Post08-15-2017 04:52 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
I can't thank everyone enough !
I really appreciate all the help. I'd be lost without everyone's awesome knowledge. I'm learning everyday.

Thanks again.

Thanks for the links....really needed that info.
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robert1234
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Report this Post08-16-2017 08:34 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
So I'm looking for "R" duke engine, but I assume its a short block that's in the 88's ?

I found what I'm looking for, but not sure if I should be looking at a short block or not.
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