They’re actually made of wood and are too thick to bend. On most games they’d be held on by magnets, but since JP has a plastic apron, I’ll have to figure it out shortly

They were selling them for $50 at the time

Do the math on the mods, It's simply game value + mods. As I stated in the ad, happy to sell without the mods if someone wants a nice clean JP. I don't think most people bothered to actually read the description. I'll consider any reasonable offer on the game, nearly all of the mods can be pulled off and sold or reused on another game, so i'm not going to lose my ass on those for no reason when i can reuse them. The only one specific to JP/Data East is the GI Maestro, everything else I can use on a Williams.

I just thought it was funny that a guy in madison thought my game was over priced with $1000 worth of mods at 4k ish. You have around the same amount of money tied into your game. Just different mods. GLWTS

Yeah, there are always people who want to get it for below market price, i get that. I've been watching the for sale ads for months before i bought mine and since i bought it as I knew it wouldn't stay for long, but wanted to have one to play for awhile. Mine is super clean with very little wear, so it's better than most out there. I spent a lot of time hunting down super clean machines.

I will most likely pull the mods off as sell the game separate, but I'm not in a big hurry, so figured I'd just post it up as is and if the right buyer came along, great. If someone really wanted a clean JP, they will probably message me. But the way it's listed should keep most of the low-ballers out of my hair and only get serious buyers.

Have any of y'all guys upgraded to different, better playfield support brackets? If so type and pics please. I don't care for the factory DE brackets.

I bought the easy slides but haven't put them on yet.

I ordered the "upgraded" ones from Marco and they were basically the same with more screw holes. Stainless.. nothing special. So now I have two sets of stupid supports. I almost, almost got up the nerve to try and retrofit the WMS/Bally lift & click supports because these are so crappy. Half the time I wrack the playfield trying to put it up or down. Interested too.

On another note, the ramp arrived from PBL. Exactly as pictured, no ball bracket at the end so that has to be moved over. Flap looks to be stainless steel and everything is riveted on. It's odd the one support is there for the metal ramp but not the end ball protection/mount. It feels as thick as the original (which is pretty thick) and I see no issues with it.

If anyone is interested in a used/repaired ramp I can send pics. 100% functional, comes with everything but the end ball bracket (lol) and a brand new flap on it. Minor repair with lexan and plastic weld, somewhat noticeable but ignorable. I'd let it go fairly cheap compared to the new $200 ramp and I have a box sitting here now to ship it in.

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Details please?

https://pinside.com/pinball/forum/topic/jurassic-park-club/page/98#post-4778753

I think he means the slides not the supports, but I put those supports on mine and totally worth it in every way. Edit: just re-read and you're probably correct.

https://back-alley-creations.myshopify.com/products/ez-slide-slider-bracket

Nice. Do you know the part numbers? That looks a lot better.

Someone asked back then if anyone replaced with the WMS ones and no one replied. Now I'm tempted.

Those look nice, I guess? I mean, I don't see the issue with the metal ones. They seem to slide just fine. It's the prop up brackets that are shit. Unless I'm missing something.

Those look nice, I guess? I mean, I don't see the issue with the metal ones. They seem to slide just fine. It's the prop up brackets that are shit. Unless I'm missing something.

They don't have the "bump" to have to go over when you slide the playfield back in.

https://www.pinballlife.com/stern-pinball-support-slide-bracket-kit-for-spike-spike-2-machines.html

https://www.pinballlife.com/stern-playfield-support-slide-bracket-kit-for-sam-machines.html

I think either of these will fit.
I put the newer spike style on and they are a complete game changer.

Ah... https://www.marcospecialties.com/pinball-parts/535-6862-0X

They also have the glides: https://www.marcospecialties.com/pinball-parts/535-5990-PG

WMS parts: https://www.marcospecialties.com/pinball-parts/A-17749.1-2 and https://www.marcospecialties.com/pinball-parts/A-17749.1-1

Gonna have to look at my TOM or TOTAN and see how those are installed if there is any space issues.

Awesome, thanks!

You do have to do a little drilling but they weren't that hard to install.
Again, NIGHT AND DAY DIFFERENCE.
100% recommend it.

Yes, I was asking about the playfield brackets. I believe the slides are fine, but I want better support brackets and pics to show position for mounting / drilling. Thanks!

Drill pilot holes for the rear screws so the wood doesn't split.

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Awesome. Of course I JUST placed an order with Marco last night. I swear USPS and pinball suppliers are in cahoots. Definitely doing this upgrade. I do really wish the sides were better. My WMS games lift up so nicely, even compared to my JJP games (which those playfield support bars are NICE. I can pull my playfields ALL the way out of the game, resting the front on a stool).

This will probably be the last post about my Youtube channel as I don't want to risk upsetting people. In my latest video there is a segment where I talk about all my JP mods if anyone is interested.

Made a video tour of my Jurassic Park while fiddling around with the best way to record a game. Here for reference in case anyone wants to see a mediocre player in action or see what too many mods in a machine looks like.

Hi everyone, my dinosaur started not to swallow the ball anymore, what can it be?

Thanks

This is the link to the video I made of the diagnostics. I understand very little, do you think there is something wrong? Thank you

Search this thread, t-rex chomping has been covered many times I believe. There are usually just a few basic reasons why he can't chomp. Is the game set at the right angle? Is the t-rex centering properly (adjust center switch) or is he not lowering all the way down? Is there something impeding him (wires coming from the back, rubber piece in the front), etc.

Can someone help me do a continuity check on my t-rex relay board? I don't know what pins I should expect what result from. We could do a live video chat if that would be ok, and just go through the pins. I confirmed continuity from the header pins to the actual relay pins but through the various combinations (starting at one lug of the relay and testing to every other one, then moving to the next one) I don't know what I should be expecting.

After replacing the relay and the rex left/right motor it still only goes left. In test mode both flippers send it left, in startup it can only go left, etc.

Here's a video of my t-rex situation if anyone has some input. Just replaced Q24 (see this thread https://pinside.com/pinball/forum/topic/jurassic-park-t-rex-side-to-side-motor-issues) but I guess it might actually be Q27. Aside from the transistors and the relay I don't know where to look next. He also doesn't chomp or go up and down in the test. I have no idea what happened, this was all working before I pulled him. Wires all look good, but voltage readings are odd to me... shown in the video. Maybe someone can confirm their voltage.

This may seem odd, but check the fuses on the shaker motor board in the bottom left of the cabinet.

And the fuse holders, the Data east fuse holders are sometimes crappy

If the fuse thing doesn't work, it's been a while since I had to mess with mine, but my write up of what I figured out (without a multi-meter) is in post #5234 with pictures...

anyone have a spare TRex arm that attaches to the vertical motor? (part 535-6657-00)? im working on one that has a badly fashioned from home depot one that's doing more harm than good. Also, I read a few posts about a spring on that arm. Does anyone have a few good pics to post since the spring isn't in the manual (or even better a part number to order it?)?

Recieved my gun launcher mod today, looks realy nice in the game sooo mutch better then my cracked plastic one!!

PM me if you are selling a set of loop combo signs, thanks

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Thanks, as far as I can tell the fuses on the shaker board are find (all have continuity) and the holders seem fine (although not exactly sure how to test those, but there is continuity from each end of each fuse holder to another component on the board.

It seems like somehow I introduced two problems, although I don't know how as this was all working before I put it back together. The rex doesn't move up and down (although all switches seem fine in the test) and does not snap his jaws. I put some voltages in my video, maybe someone could compare to their game to see if I am seeing proper values?

PM sent

I identified the problem, the wires in the sheath that reach the coil on the back of the T-Rex, the wires are damaged and the sheath cut, I removed it and I attached the wires directly to the coil, without passing them around the dinosaur. .. Now everything works, eats perfectly ... This winter I will change the sheath and the wires to make them pass around the dinosaur again

Ok. I guess I lied. I will let you know about one more video I just uploaded. It tell you how to modify your Jurassic Park or any Data East or system 11 game to turn the backbox off during gameplay and get rid of the backbox reflections in the playfield glass.

Oooooh.. interesting!

You have to do a loop-de-loop with the wiring harness to the T-Rex mouth coil.

What is the loop-de-loop?

The T-Rex assembly bends at a 90°... That is what causes the wiring harness to fatigue and fail...
By replacing the wiring harness and adding a 360° loop to the harness at the bend point...
it distresses the wiring harness.

Awesome. I was hoping to see a video on this. Thanks

Thanks

Thanks mr.Tantrum for my apron decals!!

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Nice!

Looks great, and you're welcome.

I went with the Mr_Tantrum apron decals to match my inner art.
I used green leds to light the T-Rex on the decal.
Thanks Mr.T!

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Very nice - I like it!

I still dont know if my game needs mirror or art blades.

Stickers loop dope. I gotta get in on a set at some point. I did come up with the idea after all!

I have mirrors in mine and really like them. I have art in my Getaway, and like those too.

There you go, a definitive opinion.