PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!!

704 Views 11 Replies 6 Participants Last post by Mk1Racer, Dec 1, 2001

92VdubSLC

Discussion Starter · Nov 30, 2001

ALright, As some of you may know im putting in a low mile JH into my high mileage 85 Scirocco. The Original JH is getting tired so I figured its time for a new one. But while I was at it I figured id upgrade a bit and got and 86 GTI Hydro head and what I was told was a set of 86 GTI high compression 10:1 pistons. Upon recieving the pistons I notcied the invoice said VW 1.8L R/GTI/G/S. Now to my understanding Rabbits, A1 GTI, and Scirocco's had 8.5:1 Compression. I really didnt think anything of it and opened em up. However...when I compared them to the stock pistons I pulled out of the engine they looked exactly the same. I measured the height of the pistons from top to bottom and they were exactly the same. So was the height from the piston pin to the top. As far as I can tell the dishing on the top of the piston looks the same to. So I called up Parts Place Inc. to see if the wrong pistons were sent. The guy told me that that the compression was based on the stroke and that he had a rabbit with 10:1 stock. This isnt true is it? Not only that but when I oped the box one of the piston rings was broke.

I tried to return them but the policy is exchange only. They did say theyd send a set of new rings out right away but im a little worried that a shot good enough to break a ring may have messed up the piston. My Main question is are these the wrong pistons??? The JH's were never 10:1 right?

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blackflygti

· #2 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (92VdubSLC)

JH engines were 8.5:1. VW didn't use 10:1 engines until they started using knock sensors.

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vwnutbar

· #3 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (92VdubSLC)

Just go down there and give Parts Place Inc. a kick in the teeth. You've paid good $$$ and deserve what you worked hard for. They should have to deal with the crap they've sent you. I would sent the whole kit back and demand a new replacement. You'r also right about the JH being 8.5:1. with 144mm rods. The 10:1 comp. pistons came on 16v engines. I'm not sure about the rod lengths on the 10:1 16v pistons.
Don't take any ****e from anyone about your car. You'll be the only one crying in the end.
Peace-out.

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92VdubSLC

Discussion Starter · #4 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (vwnutbar)

10:1 came on 85-87 GTI 8v's too, yes??

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gearhead455

· #5 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (92VdubSLC)

Parts Place in Aubern Hills MI ? ? If that is what they told you then I will personally go up there and kick all of there arsses. Who did you talk to?? THE STROKE IS THE SAME. I changed from 8.5 to 10:1 and the pistons where definatly different. The dish in the 8.5:1 is much larger than the 10:1. The 8.5's look like a cereal bowl and the 10's look like a small indentation. Gimme his name I'll smack him around, they know not to mess with me there.

If worse comes to worse I have an extra set of TRW rings.

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92VdubSLC

Discussion Starter · #6 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (gearhead455)

yup...thats the place. And yes they do look like cereal bowls. They gave me the number for customer service and its busy so ill try calling back in a min. $269 for this?

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92VdubSLC

Discussion Starter · #7 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (92VdubSLC)

Heres an update: They admitted they were the wrong pistons. (like I told em in the first place). Right now there looking to see if they can even GET the 85 GTI pistons. I hope they cant cause I can get a set from porttunning.com for $100 less. Hes supposed to be calling me back in a minute though so we'll see.

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gearhead455

· #8 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (92VdubSLC)

I never liked there prices, I only by oddball used parts from them. I got some cheep 10:1 pistons from the local import auto store. They cost $180 with rings and rist pins. The pistons were distributed fron "world parts". I thought that the low cost would be an indication of the quality. When I opened the box I was supprised to find that the pistons where of high quality, After a comparison, I deturmaned that these cheep pistons could have been OEM and just "destributed" through world parts. Same thing with my 16v pressure plate from world parts, It was an OEM Valeo.

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Numbersix

· #9 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (gearhead455)

I tried doing business with Parts Place. Once. Had a horrible experience. Still pisses me off thinking about it 3 years later.
Try to get a refund, the @!$!ed up not you, and order the proper RD-spec 10:1 pistons/rings thru an alternate vendor.

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Mk1Racer

· #10 · Nov 30, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (SeattleGLI)

I'm curious as to why you're putting a hydraulic lifter head on? Also, do you know that if you do, you need the higher volume oil pump.

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92VdubSLC

Discussion Starter · #11 · Dec 1, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (millerwj)

Cause the ticking makes me nuts and I hate adjusting lifters. ALready got the oil pump

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Mk1Racer

· #12 · Dec 1, 2001

Re: PLEASE PLEASE HELP!!!!!!!! I need to know if this is right!!!! (92VdubSLC)

quote:[HR][/HR]Cause the ticking makes me nuts and I hate adjusting lifters.[HR][/HR]

Yeah, the ticking thing is a bit annoying, but I've owned solid lifter GTI's for years now, and I find they don't require all that much adjustment. As a matter of fact, I haven't had to change one shim in 2 seasons of racing in my race car. I check them all the time, but I have yet to have to change one.

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