Spark plug wire hole location(s) in the DTM

Alaskabug · Post by **Alaskabug** » Sat Aug 28, 2004 5:30 pm

I'm scratchin' my head trying to figure out why the plug wire holes in my DTM shroud aren't aligning with the direction of the plugs in the cylinder heads. It seems my plugs point more horizontally toward the intake manifolds than the holes that are pre-cut in the shroud in an almost vertical position on top of the head area. I might be able to get 90 degree plugwire ends to fit on the plugs and work ok, but it will be a real pain in the butt to change the plugs (read impossible). My heads are (supposed to be) 2.L 914 heads. What's up ???

Cloudbuster · Post by **Cloudbuster** » Sat Aug 28, 2004 5:54 pm

Just guessing.
914 2.0 heads have a different plug angle/location. These require longer plug wires (which took me 3 tries at different stores to get right

). The 'more horizontal' description of the plugs makes it sounds as if you have 914 2.0 heads, but the plug holes in the DTM are cut for 1.7, 1.8 (or 2.0 bus) heads.

Alaskabug · Post by **Alaskabug** » Sat Aug 28, 2004 6:12 pm

Thanks Cloudbuster, you have confirmed my suspicions.

Hmmmm...., looks like I'm going to have to relocate the holes to the correct location for all 4 plugs then figure out a way to plug the predrilled ones so the shroud still looks good. I understand Jake built the DTM to fit "most" applications (heads) but too bad I have to make this modification.

Longer wires will allow me to connect to the plugs, but won't help when it comes time to replace them.

Thanks for your feedback.

Alaskabug.

Mark the canuck · Post by **Mark the canuck** » Sat Aug 28, 2004 6:47 pm

You can plug the old holes with a sink drain block off available at most hardware stores.

You will have to redrill your plug holes, there is a measurement off of the 3 bolt holes, email RAT for the spec.

Alaskabug · Post by **Alaskabug** » Sat Aug 28, 2004 8:09 pm

Thanks Mark, I'll e-mail RAT for the specs. (Rubber) sink drain stoppers? Hmmm..., I'd prefer billet plugs. I'll see if I can get a local shop to make some nice looking plugs.

Thanks again,

Alaskabug

Mark the canuck · Post by **Mark the canuck** » Sun Aug 29, 2004 4:29 am

No...the chrome block off plugs.
Sorry I meant they are used mainly for the unused taps.

Look at the DTM on the main DTM page at RAT...that's what they are.

Alaskabug · Post by **Alaskabug** » Sun Aug 29, 2004 9:27 am

Found it Mark, looks good. Thanks again for the suggestion.

Alaskabug
'56 Bug TIV 2056 DTM

davygrvy · Post by **davygrvy** » Mon Aug 30, 2004 12:39 am

Mine don't line-up either.. no problem..

DREMEL!

speedy57tub · Post by **speedy57tub** » Mon Aug 30, 2004 5:29 pm

Well the good news is you have the better and more preferred 914 2.0 heads. Like mark said, you can use the chrome plumbing covers. Get us some pics when you are done!

Frozen Goat · Post by **Frozen Goat** » Mon Aug 30, 2004 7:13 pm

Well, I guess the question (that only Jake can answer when he gets back) is can the DTM shrouds be produced with no spark plug access holes in the future so the customer can locate them on their own according to which heads they have???

germansupplyscott · Post by **germansupplyscott** » Tue Aug 31, 2004 6:29 am

Frozen Goat wrote:Well, I guess the question (that only Jake can answer when he gets back) is can the DTM shrouds be produced with no spark plug access holes in the future so the customer can locate them on their own according to which heads they have???

i can answer that - YES.

we sell the DTM in canada, and yes it is made with no holes to begin with, the holes are machined in after the molding process. i have a DTM shroud in our shop that has no holes. it is going on an engine with 914 heads.

Frozen Goat · Post by **Frozen Goat** » Tue Aug 31, 2004 6:58 am

punkinfair wrote:yes it is made with no holes to begin with, the holes are machined in after the molding process.

Scott, thanks for answering that - I'm sure there are alot of folks breathing sighs of relief (including me - as I plan to pick one up this winter - and yes, I'm using 914 heads).

speedy57tub · Post by **speedy57tub** » Tue Aug 31, 2004 11:32 am

Frozen Goat wrote:
punkinfair wrote:yes it is made with no holes to begin with, the holes are machined in after the molding process.
Scott, thanks for answering that - I'm sure there are alot of folks breathing sighs of relief (including me - as I plan to pick one up this winter - and yes, I'm using 914 heads).

That's 914 2.0 heads! 914 1.7 and 1.8 and VW 1.7, 1.8 and 2.0 VW heads have a different plug angle than the 914 2.0 heads. I just want to chime in to clear it for those who aren't aware of the difference.

germansupplyscott · Post by **germansupplyscott** » Tue Aug 31, 2004 5:43 pm

speedy57tub wrote:That's 914 2.0 heads!

yes, quite right.

germansupplyscott · Post by **germansupplyscott** » Tue Aug 31, 2004 5:45 pm

Frozen Goat wrote:Scott, thanks for answering that - I plan to pick one up this winter - and yes, I'm using 914 heads).

let us know when you are ready, we are the canadian distributor for the DTM. we have them in stock!

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